155648922 has 32 divisors (see below), whose sum is σ = 365722560. Its totient is φ = 43537920.

The previous prime is 155648917. The next prime is 155648929. The reversal of 155648922 is 229846551.

It is not an unprimeable number, because it can be changed into a prime (155648929) 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, 89847 + ... + 91562.

It is an arithmetic number, because the mean of its divisors is an integer number (11428830).

Almost surely, 2^155648922 is an apocalyptic number.

155648922 is an abundant number, since it is smaller than the sum of its proper divisors (210073638).

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

155648922 is a wasteful number, since it uses less digits than its factorization.

155648922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181438.

The product of its digits is 172800, while the sum is 42.

The square root of 155648922 is about 12475.9337125523. The cubic root of 155648922 is about 537.9171272230.

The spelling of 155648922 in words is "one hundred fifty-five million, six hundred forty-eight thousand, nine hundred twenty-two".