155271408 has 20 divisors (see below), whose sum is σ = 401117928. Its totient is φ = 51757120.

The previous prime is 155271383. The next prime is 155271427. The reversal of 155271408 is 804172551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1617363 + ... + 1617458.

Almost surely, 2^155271408 is an apocalyptic number.

It is an amenable number.

155271408 is an abundant number, since it is smaller than the sum of its proper divisors (245846520).

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

155271408 is a wasteful number, since it uses less digits than its factorization.

155271408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234832 (or 3234826 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 155271408 is about 12460.7948382116. The cubic root of 155271408 is about 537.4818835069.

The spelling of 155271408 in words is "one hundred fifty-five million, two hundred seventy-one thousand, four hundred eight".