155960513 has 8 divisors (see below), whose sum is σ = 160693032. Its totient is φ = 151255296.

The previous prime is 155960509. The next prime is 155960543. The reversal of 155960513 is 315069551.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 35344 + 155925169 = 188^2 + 12487^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155960513 - 2² = 155960509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155960543) 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, 5081 + ... + 18377.

It is an arithmetic number, because the mean of its divisors is an integer number (20086629).

Almost surely, 2^155960513 is an apocalyptic number.

It is an amenable number.

155960513 is a deficient number, since it is larger than the sum of its proper divisors (4732519).

155960513 is a wasteful number, since it uses less digits than its factorization.

155960513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13651.

The product of its (nonzero) digits is 20250, while the sum is 35.

The square root of 155960513 is about 12488.4151516515. The cubic root of 155960513 is about 538.2758370946.

The spelling of 155960513 in words is "one hundred fifty-five million, nine hundred sixty thousand, five hundred thirteen".