155371632 has 80 divisors (see below), whose sum is σ = 442867488. Its totient is φ = 46632960.

The previous prime is 155371631. The next prime is 155371637. The reversal of 155371632 is 236173551.

It is a junction number, because it is equal to n+sod(n) for n = 155371593 and 155371602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155371631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22548 + ... + 28620.

Almost surely, 2^155371632 is an apocalyptic number.

155371632 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 155371632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221433744).

155371632 is an abundant number, since it is smaller than the sum of its proper divisors (287495856).

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

155371632 is a wasteful number, since it uses less digits than its factorization.

155371632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6138 (or 6132 counting only the distinct ones).

The product of its digits is 18900, while the sum is 33.

The square root of 155371632 is about 12464.8157627780. The cubic root of 155371632 is about 537.5975025571.

The spelling of 155371632 in words is "one hundred fifty-five million, three hundred seventy-one thousand, six hundred thirty-two".