155372970 has 16 divisors (see below), whose sum is σ = 372895200. Its totient is φ = 41432784.

The previous prime is 155372969. The next prime is 155372977. The reversal of 155372970 is 79273551.

It is not an unprimeable number, because it can be changed into a prime (155372977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2589520 + ... + 2589579.

It is an arithmetic number, because the mean of its divisors is an integer number (23305950).

Almost surely, 2^155372970 is an apocalyptic number.

155372970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155372970 is an abundant number, since it is smaller than the sum of its proper divisors (217522230).

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

155372970 is a wasteful number, since it uses less digits than its factorization.

155372970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5179109.

The product of its (nonzero) digits is 66150, while the sum is 39.

The square root of 155372970 is about 12464.8694337325. The cubic root of 155372970 is about 537.5990457462.

The spelling of 155372970 in words is "one hundred fifty-five million, three hundred seventy-two thousand, nine hundred seventy".