315615146442 has 16 divisors (see below), whose sum is σ = 631251268032. Its totient is φ = 105201552960.

The previous prime is 315615146423. The next prime is 315615146447. The reversal of 315615146442 is 244641516513.

It is a super-2 number, since 2×315615146442² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 315615146394 and 315615146403.

It is not an unprimeable number, because it can be changed into a prime (315615146447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674863 + ... + 1042434.

It is an arithmetic number, because the mean of its divisors is an integer number (39453204252).

Almost surely, 2^315615146442 is an apocalyptic number.

315615146442 is an abundant number, since it is smaller than the sum of its proper divisors (315636121590).

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

315615146442 is a wasteful number, since it uses less digits than its factorization.

315615146442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747933.

The product of its digits is 345600, while the sum is 42.

The spelling of 315615146442 in words is "three hundred fifteen billion, six hundred fifteen million, one hundred forty-six thousand, four hundred forty-two".