155385534 has 16 divisors (see below), whose sum is σ = 327127680. Its totient is φ = 49069080.

The previous prime is 155385499. The next prime is 155385589. The reversal of 155385534 is 435583551.

It is a junction number, because it is equal to n+sod(n) for n = 155385492 and 155385501.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 681402 + ... + 681629.

It is an arithmetic number, because the mean of its divisors is an integer number (20445480).

Almost surely, 2^155385534 is an apocalyptic number.

155385534 is an abundant number, since it is smaller than the sum of its proper divisors (171742146).

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

155385534 is a wasteful number, since it uses less digits than its factorization.

155385534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363055.

The product of its digits is 180000, while the sum is 39.

The square root of 155385534 is about 12465.3733999427. The cubic root of 155385534 is about 537.6135360666.

The spelling of 155385534 in words is "one hundred fifty-five million, three hundred eighty-five thousand, five hundred thirty-four".