155492 has 6 divisors (see below), whose sum is σ = 272118. Its totient is φ = 77744.

The previous prime is 155473. The next prime is 155501. The reversal of 155492 is 294551.

It can be written as a sum of positive squares in only one way, i.e., 155236 + 256 = 394^2 + 16^2 .

It is an Ulam number.

It is an unprimeable number.

155492 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19433 + ... + 19440.

It is an arithmetic number, because the mean of its divisors is an integer number (45353).

2¹⁵⁵⁴⁹² is an apocalyptic number.

It is an amenable number.

155492 is a deficient number, since it is larger than the sum of its proper divisors (116626).

155492 is a wasteful number, since it uses less digits than its factorization.

155492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38877 (or 38875 counting only the distinct ones).

The product of its digits is 1800, while the sum is 26.

The square root of 155492 is about 394.3247392696. The cubic root of 155492 is about 53.7736294159.

It can be divided in two parts, 15549 and 2, that added together give a palindrome (15551).

The spelling of 155492 in words is "one hundred fifty-five thousand, four hundred ninety-two".