155853434 has 16 divisors (see below), whose sum is σ = 255225600. Its totient is φ = 70788960.

The previous prime is 155853427. The next prime is 155853437. The reversal of 155853434 is 434358551.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155853437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51302 + ... + 54254.

It is an arithmetic number, because the mean of its divisors is an integer number (15951600).

Almost surely, 2^155853434 is an apocalyptic number.

155853434 is a deficient number, since it is larger than the sum of its proper divisors (99372166).

155853434 is a wasteful number, since it uses less digits than its factorization.

155853434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5365.

The product of its digits is 144000, while the sum is 38.

The square root of 155853434 is about 12484.1272822733. The cubic root of 155853434 is about 538.1526195073.

The spelling of 155853434 in words is "one hundred fifty-five million, eight hundred fifty-three thousand, four hundred thirty-four".