151655 has 12 divisors (see below), whose sum is σ = 212040. Its totient is φ = 103824.

The previous prime is 151651. The next prime is 151667. The reversal of 151655 is 556151.

It is not a de Polignac number, because 151655 - 2² = 151651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65 + ... + 554.

It is an arithmetic number, because the mean of its divisors is an integer number (17670).

2¹⁵¹⁶⁵⁵ is an apocalyptic number.

151655 is a deficient number, since it is larger than the sum of its proper divisors (60385).

151655 is an equidigital number, since it uses as much as digits as its factorization.

151655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 631 counting only the distinct ones).

The product of its digits is 750, while the sum is 23.

The square root of 151655 is about 389.4290692796. The cubic root of 151655 is about 53.3276252572.

Subtracting 151655 from its reverse (556151), we obtain a square (404496 = 636²).

The spelling of 151655 in words is "one hundred fifty-one thousand, six hundred fifty-five".