155045388 has 24 divisors (see below), whose sum is σ = 361974592. Its totient is φ = 51652944.

The previous prime is 155045381. The next prime is 155045399. The reversal of 155045388 is 883540551.

155045388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (155045381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37731 + ... + 41637.

Almost surely, 2^155045388 is an apocalyptic number.

It is an amenable number.

155045388 is an abundant number, since it is smaller than the sum of its proper divisors (206929204).

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

155045388 is a wasteful number, since it uses less digits than its factorization.

155045388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7221 (or 7219 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 39.

The square root of 155045388 is about 12451.7222905107. The cubic root of 155045388 is about 537.2209626473.

The spelling of 155045388 in words is "one hundred fifty-five million, forty-five thousand, three hundred eighty-eight".