315550154 has 4 divisors (see below), whose sum is σ = 473325234. Its totient is φ = 157775076.

The previous prime is 315550153. The next prime is 315550177. The reversal of 315550154 is 451055513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 451055513 = 12457 ⋅36209.

It can be written as a sum of positive squares in only one way, i.e., 180176929 + 135373225 = 13423^2 + 11635^2 .

It is not an unprimeable number, because it can be changed into a prime (315550153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78887537 + ... + 78887540.

Almost surely, 2^315550154 is an apocalyptic number.

315550154 is a deficient number, since it is larger than the sum of its proper divisors (157775080).

315550154 is a wasteful number, since it uses less digits than its factorization.

315550154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157775079.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 315550154 is about 17763.7314210725. The cubic root of 315550154 is about 680.8050974532.

The spelling of 315550154 in words is "three hundred fifteen million, five hundred fifty thousand, one hundred fifty-four".