155132992 has 56 divisors (see below), whose sum is σ = 360046016. Its totient is φ = 64931328.

The previous prime is 155132981. The next prime is 155132993. The reversal of 155132992 is 299231551.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (155132993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15238 + ... + 23290.

Almost surely, 2^155132992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155132992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180023008).

155132992 is an abundant number, since it is smaller than the sum of its proper divisors (204913024).

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

155132992 is an equidigital number, since it uses as much as digits as its factorization.

155132992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8115 (or 8105 counting only the distinct ones).

The product of its digits is 24300, while the sum is 37.

The square root of 155132992 is about 12455.2395400490. The cubic root of 155132992 is about 537.3221240874.

It can be divided in two parts, 1551 and 32992, that added together give a palindrome (34543).

The spelling of 155132992 in words is "one hundred fifty-five million, one hundred thirty-two thousand, nine hundred ninety-two".