155154674 has 4 divisors (see below), whose sum is σ = 232732014. Its totient is φ = 77577336.

The previous prime is 155154617. The next prime is 155154709. The reversal of 155154674 is 476451551.

155154674 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 476451551 = 139 ⋅3427709.

It can be written as a sum of positive squares in only one way, i.e., 153933649 + 1221025 = 12407^2 + 1105^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38788667 + ... + 38788670.

Almost surely, 2^155154674 is an apocalyptic number.

155154674 is a deficient number, since it is larger than the sum of its proper divisors (77577340).

155154674 is an equidigital number, since it uses as much as digits as its factorization.

155154674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77577339.

The product of its digits is 84000, while the sum is 38.

The square root of 155154674 is about 12456.1099063873. The cubic root of 155154674 is about 537.3471556757.

The spelling of 155154674 in words is "one hundred fifty-five million, one hundred fifty-four thousand, six hundred seventy-four".