155245074 has 16 divisors (see below), whose sum is σ = 312052800. Its totient is φ = 51487920.

The previous prime is 155245049. The next prime is 155245127. The reversal of 155245074 is 470542551.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63817 + ... + 66204.

It is an arithmetic number, because the mean of its divisors is an integer number (19503300).

Almost surely, 2^155245074 is an apocalyptic number.

155245074 is an abundant number, since it is smaller than the sum of its proper divisors (156807726).

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

155245074 is a wasteful number, since it uses less digits than its factorization.

155245074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130225.

The product of its (nonzero) digits is 28000, while the sum is 33.

The square root of 155245074 is about 12459.7381192383. The cubic root of 155245074 is about 537.4514961820.

The spelling of 155245074 in words is "one hundred fifty-five million, two hundred forty-five thousand, seventy-four".