264015197 has 2 divisors, whose sum is σ = 264015198. Its totient is φ = 264015196.

The previous prime is 264015179. The next prime is 264015209. The reversal of 264015197 is 791510462.

Together with previous prime (264015179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141824281 + 122190916 = 11909^2 + 11054^2 .

It is a cyclic number.

It is not a de Polignac number, because 264015197 - 2¹² = 264011101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264015397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132007598 + 132007599.

It is an arithmetic number, because the mean of its divisors is an integer number (132007599).

Almost surely, 2^264015197 is an apocalyptic number.

It is an amenable number.

264015197 is a deficient number, since it is larger than the sum of its proper divisors (1).

264015197 is an equidigital number, since it uses as much as digits as its factorization.

264015197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 264015197 is about 16248.5444578891. The cubic root of 264015197 is about 641.5191750810.

The spelling of 264015197 in words is "two hundred sixty-four million, fifteen thousand, one hundred ninety-seven".