215120667 has 16 divisors (see below), whose sum is σ = 292320000. Its totient is φ = 140678304.

The previous prime is 215120657. The next prime is 215120677. The reversal of 215120667 is 766021512.

It is an interprime number because it is at equal distance from previous prime (215120657) and next prime (215120677).

It is not a de Polignac number, because 215120667 - 2¹⁰ = 215119643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215120657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105009 + ... + 107037.

It is an arithmetic number, because the mean of its divisors is an integer number (18270000).

Almost surely, 2^215120667 is an apocalyptic number.

215120667 is a deficient number, since it is larger than the sum of its proper divisors (77199333).

215120667 is a wasteful number, since it uses less digits than its factorization.

215120667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 215120667 is about 14666.9924319882. The cubic root of 215120667 is about 599.1846954103.

The spelling of 215120667 in words is "two hundred fifteen million, one hundred twenty thousand, six hundred sixty-seven".