7293015138 has 72 divisors (see below), whose sum is σ = 15786622224. Its totient is φ = 2245763520.

The previous prime is 7293015061. The next prime is 7293015151. The reversal of 7293015138 is 8315103927.

It is a junction number, because it is equal to n+sod(n) for n = 7293015096 and 7293015105.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3640045 + ... + 3642047.

It is an arithmetic number, because the mean of its divisors is an integer number (219258642).

Almost surely, 2^7293015138 is an apocalyptic number.

7293015138 is an abundant number, since it is smaller than the sum of its proper divisors (8493607086).

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

7293015138 is a wasteful number, since it uses less digits than its factorization.

7293015138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128 (or 2068 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 7293015138 is about 85399.1518576151. The cubic root of 7293015138 is about 1939.2585059069.

The spelling of 7293015138 in words is "seven billion, two hundred ninety-three million, fifteen thousand, one hundred thirty-eight".