312949653 has 8 divisors (see below), whose sum is σ = 417354816. Its totient is φ = 208588800.

The previous prime is 312949649. The next prime is 312949667. The reversal of 312949653 is 356949213.

It is a happy number.

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

It is not a de Polignac number, because 312949653 - 2² = 312949649 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312949633) 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, 12693 + ... + 28053.

It is an arithmetic number, because the mean of its divisors is an integer number (52169352).

Almost surely, 2^312949653 is an apocalyptic number.

It is an amenable number.

312949653 is a deficient number, since it is larger than the sum of its proper divisors (104405163).

312949653 is a wasteful number, since it uses less digits than its factorization.

312949653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22155.

The product of its digits is 174960, while the sum is 42.

The square root of 312949653 is about 17690.3830653833. The cubic root of 312949653 is about 678.9297271039.

The spelling of 312949653 in words is "three hundred twelve million, nine hundred forty-nine thousand, six hundred fifty-three".