264351261 has 8 divisors (see below), whose sum is σ = 354021984. Its totient is φ = 175457360.

The previous prime is 264351257. The next prime is 264351277. The reversal of 264351261 is 162153462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264351261 - 2² = 264351257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264351961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193410 + ... + 194771.

It is an arithmetic number, because the mean of its divisors is an integer number (44252748).

Almost surely, 2^264351261 is an apocalyptic number.

It is an amenable number.

264351261 is a deficient number, since it is larger than the sum of its proper divisors (89670723).

264351261 is a wasteful number, since it uses less digits than its factorization.

264351261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388411.

The product of its digits is 8640, while the sum is 30.

The square root of 264351261 is about 16258.8825261763. The cubic root of 264351261 is about 641.7912554914.

The spelling of 264351261 in words is "two hundred sixty-four million, three hundred fifty-one thousand, two hundred sixty-one".