215460701 has 2 divisors, whose sum is σ = 215460702. Its totient is φ = 215460700.

The previous prime is 215460649. The next prime is 215460733. The reversal of 215460701 is 107064512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118831801 + 96628900 = 10901^2 + 9830^2 .

It is a cyclic number.

It is not a de Polignac number, because 215460701 - 2²² = 211266397 is a prime.

It is a super-2 number, since 2×215460701² = 92846627350822802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215460101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107730350 + 107730351.

It is an arithmetic number, because the mean of its divisors is an integer number (107730351).

Almost surely, 2^215460701 is an apocalyptic number.

It is an amenable number.

215460701 is a deficient number, since it is larger than the sum of its proper divisors (1).

215460701 is an equidigital number, since it uses as much as digits as its factorization.

215460701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 215460701 is about 14678.5796656216. The cubic root of 215460701 is about 599.5002329111.

The spelling of 215460701 in words is "two hundred fifteen million, four hundred sixty thousand, seven hundred one".