151015 has 4 divisors (see below), whose sum is σ = 181224. Its totient is φ = 120808.

The previous prime is 151013. The next prime is 151027. The reversal of 151015 is 510151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 510151 = 101 ⋅5051.

It is a cyclic number.

It is not a de Polignac number, because 151015 - 2¹ = 151013 is a prime.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 150986 and 151004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15097 + ... + 15106.

It is an arithmetic number, because the mean of its divisors is an integer number (45306).

2¹⁵¹⁰¹⁵ is an apocalyptic number.

151015 is a deficient number, since it is larger than the sum of its proper divisors (30209).

151015 is an equidigital number, since it uses as much as digits as its factorization.

151015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30208.

The product of its (nonzero) digits is 25, while the sum is 13.

The square root of 151015 is about 388.6064847632. The cubic root of 151015 is about 53.2525034273.

Adding to 151015 its reverse (510151), we get a palindrome (661166).

It can be divided in two parts, 15 and 1015, that multiplied together give a triangular number (15225 = T₁₇₄).

The spelling of 151015 in words is "one hundred fifty-one thousand, fifteen".