7215233157 has 12 divisors (see below), whose sum is σ = 11369458464. Its totient is φ = 4372868520.

The previous prime is 7215233131. The next prime is 7215233189. The reversal of 7215233157 is 7513325127.

It is a happy number.

It is not a de Polignac number, because 7215233157 - 2⁷ = 7215233029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7215233197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36440473 + ... + 36440670.

It is an arithmetic number, because the mean of its divisors is an integer number (947454872).

Almost surely, 2^7215233157 is an apocalyptic number.

It is an amenable number.

7215233157 is a deficient number, since it is larger than the sum of its proper divisors (4154225307).

7215233157 is a wasteful number, since it uses less digits than its factorization.

7215233157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72881160 (or 72881157 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 7215233157 is about 84942.5285531341. The cubic root of 7215233157 is about 1932.3396109971.

The spelling of 7215233157 in words is "seven billion, two hundred fifteen million, two hundred thirty-three thousand, one hundred fifty-seven".