313964261 has 4 divisors (see below), whose sum is σ = 338115372. Its totient is φ = 289813152.

The previous prime is 313964221. The next prime is 313964263. The reversal of 313964261 is 162469313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162469313 = 9613 ⋅16901.

It can be written as a sum of positive squares in 2 ways, for example, as 17056900 + 296907361 = 4130^2 + 17231^2 .

It is a cyclic number.

It is not a de Polignac number, because 313964261 - 2⁶ = 313964197 is a prime.

It is a super-2 number, since 2×313964261² = 197147114370552242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313964263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12075536 + ... + 12075561.

It is an arithmetic number, because the mean of its divisors is an integer number (84528843).

Almost surely, 2^313964261 is an apocalyptic number.

It is an amenable number.

313964261 is a deficient number, since it is larger than the sum of its proper divisors (24151111).

313964261 is a wasteful number, since it uses less digits than its factorization.

313964261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24151110.

The product of its digits is 23328, while the sum is 35.

The square root of 313964261 is about 17719.0366837478. The cubic root of 313964261 is about 679.6626505745.

The spelling of 313964261 in words is "three hundred thirteen million, nine hundred sixty-four thousand, two hundred sixty-one".