155347478 has 32 divisors (see below), whose sum is σ = 274875552. Its totient is φ = 64915200.

The previous prime is 155347463. The next prime is 155347561. The reversal of 155347478 is 874743551.

155347478 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (470400) is a multiple of the sum of its prime divisors (2240).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79400 + ... + 81332.

It is an arithmetic number, because the mean of its divisors is an integer number (8589861).

Almost surely, 2^155347478 is an apocalyptic number.

155347478 is a deficient number, since it is larger than the sum of its proper divisors (119528074).

155347478 is a wasteful number, since it uses less digits than its factorization.

155347478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240.

The product of its digits is 470400, while the sum is 44.

The square root of 155347478 is about 12463.8468379550. The cubic root of 155347478 is about 537.5696428961.

The spelling of 155347478 in words is "one hundred fifty-five million, three hundred forty-seven thousand, four hundred seventy-eight".