149566151 has 4 divisors (see below), whose sum is σ = 170932752. Its totient is φ = 128199552.

The previous prime is 149566141. The next prime is 149566163. The reversal of 149566151 is 151665941.

149566151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151665941 = 7 ⋅21666563.

It is a cyclic number.

It is not a de Polignac number, because 149566151 - 2¹⁴ = 149549767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149566141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10683290 + ... + 10683303.

It is an arithmetic number, because the mean of its divisors is an integer number (42733188).

Almost surely, 2^149566151 is an apocalyptic number.

149566151 is a deficient number, since it is larger than the sum of its proper divisors (21366601).

149566151 is an equidigital number, since it uses as much as digits as its factorization.

149566151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21366600.

The product of its digits is 32400, while the sum is 38.

The square root of 149566151 is about 12229.7240770183. The cubic root of 149566151 is about 530.8165306363.

The spelling of 149566151 in words is "one hundred forty-nine million, five hundred sixty-six thousand, one hundred fifty-one".