155424074 has 8 divisors (see below), whose sum is σ = 251069700. Its totient is φ = 71734176.

The previous prime is 155423981. The next prime is 155424083. The reversal of 155424074 is 470424551.

It can be written as a sum of positive squares in 2 ways, for example, as 144168049 + 11256025 = 12007^2 + 3355^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 155424074.

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, 2988899 + ... + 2988950.

Almost surely, 2^155424074 is an apocalyptic number.

155424074 is a deficient number, since it is larger than the sum of its proper divisors (95645626).

155424074 is a wasteful number, since it uses less digits than its factorization.

155424074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5977864.

The product of its (nonzero) digits is 22400, while the sum is 32.

The square root of 155424074 is about 12466.9191863908. The cubic root of 155424074 is about 537.6579801714.

The spelling of 155424074 in words is "one hundred fifty-five million, four hundred twenty-four thousand, seventy-four".