313262261 has 4 divisors (see below), whose sum is σ = 337359372. Its totient is φ = 289165152.

The previous prime is 313262251. The next prime is 313262273. The reversal of 313262261 is 162262313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64096036 + 249166225 = 8006^2 + 15785^2 .

It is a cyclic number.

It is not a de Polignac number, because 313262261 - 2⁶ = 313262197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313262261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313262221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12048536 + ... + 12048561.

It is an arithmetic number, because the mean of its divisors is an integer number (84339843).

Almost surely, 2^313262261 is an apocalyptic number.

It is an amenable number.

313262261 is a deficient number, since it is larger than the sum of its proper divisors (24097111).

313262261 is a wasteful number, since it uses less digits than its factorization.

313262261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24097110.

The product of its digits is 2592, while the sum is 26.

The square root of 313262261 is about 17699.2163950837. The cubic root of 313262261 is about 679.1557147159.

The spelling of 313262261 in words is "three hundred thirteen million, two hundred sixty-two thousand, two hundred sixty-one".