315223440134 has 32 divisors (see below), whose sum is σ = 515826869760. Its totient is φ = 143906194432.

The previous prime is 315223440127. The next prime is 315223440143. The reversal of 315223440134 is 431044322513.

It is a self number, because there is not a number n which added to its sum of digits gives 315223440134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822374 + ... + 1143129.

It is an arithmetic number, because the mean of its divisors is an integer number (16119589680).

Almost surely, 2^315223440134 is an apocalyptic number.

315223440134 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

315223440134 is a deficient number, since it is larger than the sum of its proper divisors (200603429626).

315223440134 is a wasteful number, since it uses less digits than its factorization.

315223440134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965664.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 315223440134 its reverse (431044322513), we get a palindrome (746267762647).

The spelling of 315223440134 in words is "three hundred fifteen billion, two hundred twenty-three million, four hundred forty thousand, one hundred thirty-four".