155478934 has 8 divisors (see below), whose sum is σ = 251158320. Its totient is φ = 71759496.

The previous prime is 155478931. The next prime is 155478979. The reversal of 155478934 is 439874551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155478931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2989954 + ... + 2990005.

It is an arithmetic number, because the mean of its divisors is an integer number (31394790).

Almost surely, 2^155478934 is an apocalyptic number.

155478934 is a deficient number, since it is larger than the sum of its proper divisors (95679386).

155478934 is a wasteful number, since it uses less digits than its factorization.

155478934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5979974.

The product of its digits is 604800, while the sum is 46.

The square root of 155478934 is about 12469.1192150849. The cubic root of 155478934 is about 537.7212317350.

The spelling of 155478934 in words is "one hundred fifty-five million, four hundred seventy-eight thousand, nine hundred thirty-four".