155356434 has 16 divisors (see below), whose sum is σ = 345236640. Its totient is φ = 51785460.

The previous prime is 155356417. The next prime is 155356457. The reversal of 155356434 is 434653551.

155356434 is a `hidden beast` number, since 1 + 5 + 5 + 3 + 5 + 643 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1438432 + ... + 1438539.

It is an arithmetic number, because the mean of its divisors is an integer number (21577290).

Almost surely, 2^155356434 is an apocalyptic number.

155356434 is an abundant number, since it is smaller than the sum of its proper divisors (189880206).

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

155356434 is a wasteful number, since it uses less digits than its factorization.

155356434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876982 (or 2876976 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 155356434 is about 12464.2061119030. The cubic root of 155356434 is about 537.5799732455.

The spelling of 155356434 in words is "one hundred fifty-five million, three hundred fifty-six thousand, four hundred thirty-four".