151240 has 32 divisors (see below), whose sum is σ = 360000. Its totient is φ = 57024.

The previous prime is 151237. The next prime is 151241. The reversal of 151240 is 42151.

It is a self number, because there is not a number n which added to its sum of digits gives 151240.

It is not an unprimeable number, because it can be changed into a prime (151241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661 + ... + 859.

It is an arithmetic number, because the mean of its divisors is an integer number (11250).

2¹⁵¹²⁴⁰ is an apocalyptic number.

151240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180000).

151240 is an abundant number, since it is smaller than the sum of its proper divisors (208760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151240 is a wasteful number, since it uses less digits than its factorization.

151240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 151240 is about 388.8958729532. The cubic root of 151240 is about 53.2789375951.

Adding to 151240 its reverse (42151), we get a palindrome (193391).

The spelling of 151240 in words is "one hundred fifty-one thousand, two hundred forty".