7214914521 has 6 divisors (see below), whose sum is σ = 10421543210. Its totient is φ = 4809943008.

The previous prime is 7214914501. The next prime is 7214914537. The reversal of 7214914521 is 1254194127.

It can be written as a sum of positive squares in only one way, i.e., 5146484121 + 2068430400 = 71739^2 + 45480^2 .

It is not a de Polignac number, because 7214914521 - 2⁶ = 7214914457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7214914501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 400828576 + ... + 400828593.

Almost surely, 2^7214914521 is an apocalyptic number.

It is an amenable number.

7214914521 is a deficient number, since it is larger than the sum of its proper divisors (3206628689).

7214914521 is a wasteful number, since it uses less digits than its factorization.

7214914521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801657175 (or 801657172 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 7214914521 is about 84940.6529348580. The cubic root of 7214914521 is about 1932.3111655302.

The spelling of 7214914521 in words is "seven billion, two hundred fourteen million, nine hundred fourteen thousand, five hundred twenty-one".