155530474 has 16 divisors (see below), whose sum is σ = 254788416. Its totient is φ = 70616800.

The previous prime is 155530471. The next prime is 155530477. The reversal of 155530474 is 474035551.

It is an interprime number because it is at equal distance from previous prime (155530471) and next prime (155530477).

It is not an unprimeable number, because it can be changed into a prime (155530471) 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, 19254 + ... + 26110.

It is an arithmetic number, because the mean of its divisors is an integer number (15924276).

Almost surely, 2^155530474 is an apocalyptic number.

155530474 is a deficient number, since it is larger than the sum of its proper divisors (99257942).

155530474 is a wasteful number, since it uses less digits than its factorization.

155530474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7901.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 155530474 is about 12471.1857495589. The cubic root of 155530474 is about 537.7806419067.

The spelling of 155530474 in words is "one hundred fifty-five million, five hundred thirty thousand, four hundred seventy-four".