264871157 has 4 divisors (see below), whose sum is σ = 269868780. Its totient is φ = 259873536.

The previous prime is 264871147. The next prime is 264871163. The reversal of 264871157 is 751178462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 751178462 = 2 ⋅375589231.

It can be written as a sum of positive squares in 2 ways, for example, as 225420196 + 39450961 = 15014^2 + 6281^2 .

It is a cyclic number.

It is not a de Polignac number, because 264871157 - 2⁴ = 264871141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264871147) 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, 2498732 + ... + 2498837.

It is an arithmetic number, because the mean of its divisors is an integer number (67467195).

Almost surely, 2^264871157 is an apocalyptic number.

It is an amenable number.

264871157 is a deficient number, since it is larger than the sum of its proper divisors (4997623).

264871157 is an equidigital number, since it uses as much as digits as its factorization.

264871157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4997622.

The product of its digits is 94080, while the sum is 41.

The square root of 264871157 is about 16274.8627336761. The cubic root of 264871157 is about 642.2117139955.

The spelling of 264871157 in words is "two hundred sixty-four million, eight hundred seventy-one thousand, one hundred fifty-seven".