155672427 has 32 divisors (see below), whose sum is σ = 219636736. Its totient is φ = 97977600.

The previous prime is 155672401. The next prime is 155672437. The reversal of 155672427 is 724276551.

It is not a de Polignac number, because 155672427 - 2⁷ = 155672299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155672437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 574302 + ... + 574572.

It is an arithmetic number, because the mean of its divisors is an integer number (6863648).

Almost surely, 2^155672427 is an apocalyptic number.

155672427 is a deficient number, since it is larger than the sum of its proper divisors (63964309).

155672427 is a wasteful number, since it uses less digits than its factorization.

155672427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451.

The product of its digits is 117600, while the sum is 39.

The square root of 155672427 is about 12476.8756906527. The cubic root of 155672427 is about 537.9442033408.

The spelling of 155672427 in words is "one hundred fifty-five million, six hundred seventy-two thousand, four hundred twenty-seven".