7312309132 has 24 divisors (see below), whose sum is σ = 13363257600. Its totient is φ = 3494481936.

The previous prime is 7312309111. The next prime is 7312309157. The reversal of 7312309132 is 2319032137.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7312309094 and 7312309103.

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, 91219 + ... + 151477.

It is an arithmetic number, because the mean of its divisors is an integer number (556802400).

Almost surely, 2^7312309132 is an apocalyptic number.

It is an amenable number.

7312309132 is a deficient number, since it is larger than the sum of its proper divisors (6050948468).

7312309132 is a wasteful number, since it uses less digits than its factorization.

7312309132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61605 (or 61603 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 7312309132 is about 85512.0408597526. The cubic root of 7312309132 is about 1940.9671314166.

The spelling of 7312309132 in words is "seven billion, three hundred twelve million, three hundred nine thousand, one hundred thirty-two".