7157215087 has 4 divisors (see below), whose sum is σ = 7807871016. Its totient is φ = 6506559160.

The previous prime is 7157215073. The next prime is 7157215103. The reversal of 7157215087 is 7805127517.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7157215087 - 2⁷ = 7157214959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7157215027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325327948 + ... + 325327969.

It is an arithmetic number, because the mean of its divisors is an integer number (1951967754).

Almost surely, 2^7157215087 is an apocalyptic number.

7157215087 is a deficient number, since it is larger than the sum of its proper divisors (650655929).

7157215087 is a wasteful number, since it uses less digits than its factorization.

7157215087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650655928.

The product of its (nonzero) digits is 137200, while the sum is 43.

The square root of 7157215087 is about 84600.3255726596. The cubic root of 7157215087 is about 1927.1463179653.

The spelling of 7157215087 in words is "seven billion, one hundred fifty-seven million, two hundred fifteen thousand, eighty-seven".