7215143364 has 315 divisors, whose sum is σ = 22549141965. Its totient is φ = 2018221920.

The previous prime is 7215143357. The next prime is 7215143371. The reversal of 7215143364 is 4633415127.

The square root of 7215143364 is 84942.

It is a perfect power (a square), and thus also a powerful number.

7215143364 is a `hidden beast` number, since 7 + 215 + 1 + 433 + 6 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (7215143357) and next prime (7215143371).

It can be written as a sum of positive squares in only one way, i.e., 1067328900 + 6147814464 = 32670^2 + 78408^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 104 ways as a sum of consecutive naturals, for example, 555011022 + ... + 555011034.

Almost surely, 2^7215143364 is an apocalyptic number.

7215143364 is the 84942-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7215143364

7215143364 is an abundant number, since it is smaller than the sum of its proper divisors (15333998601).

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

7215143364 is an equidigital number, since it uses as much as digits as its factorization.

7215143364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 29 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The cubic root of 7215143364 is about 1932.3315950265.

Multiplying 7215143364 by its sum of digits (36), we get a square (259745161104 = 509652²).

7215143364 divided by its sum of digits (36) gives a square (200420649 = 14157²).

The spelling of 7215143364 in words is "seven billion, two hundred fifteen million, one hundred forty-three thousand, three hundred sixty-four".