155692992 has 336 divisors, whose sum is σ = 551322240. Its totient is φ = 38320128.

The previous prime is 155692961. The next prime is 155692993. The reversal of 155692992 is 299296551.

It is a happy number.

155692992 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155692993) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2323743 + ... + 2323809.

It is an arithmetic number, because the mean of its divisors is an integer number (1640840).

Almost surely, 2^155692992 is an apocalyptic number.

155692992 is a gapful number since it is divisible by the number (12) 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 155692992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275661120).

155692992 is an abundant number, since it is smaller than the sum of its proper divisors (395629248).

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

155692992 is a wasteful number, since it uses less digits than its factorization.

155692992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 111 counting only the distinct ones).

The product of its digits is 437400, while the sum is 48.

The square root of 155692992 is about 12477.6997880218. The cubic root of 155692992 is about 537.9678905487.

The spelling of 155692992 in words is "one hundred fifty-five million, six hundred ninety-two thousand, nine hundred ninety-two".