12953731 has 8 divisors (see below), whose sum is σ = 14826240. Its totient is φ = 11086728.

The previous prime is 12953729. The next prime is 12953771. The reversal of 12953731 is 13735921.

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 12953731 - 2¹ = 12953729 is a prime.

It is a super-2 number, since 2×12953731² = 335598293640722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12953693 and 12953702.

It is not an unprimeable number, because it can be changed into a prime (12953701) 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, 7530 + ... + 9088.

It is an arithmetic number, because the mean of its divisors is an integer number (1853280).

Almost surely, 2^12953731 is an apocalyptic number.

12953731 is a deficient number, since it is larger than the sum of its proper divisors (1872509).

12953731 is a wasteful number, since it uses less digits than its factorization.

12953731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2753.

The product of its digits is 5670, while the sum is 31.

The square root of 12953731 is about 3599.1292002372. The cubic root of 12953731 is about 234.8541784339.

The spelling of 12953731 in words is "twelve million, nine hundred fifty-three thousand, seven hundred thirty-one".