10312649 has 4 divisors (see below), whose sum is σ = 10855440. Its totient is φ = 9769860.

The previous prime is 10312633. The next prime is 10312657. The reversal of 10312649 is 94621301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94621301 = 2713 ⋅34877.

It is a cyclic number.

It is not a de Polignac number, because 10312649 - 2⁴ = 10312633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10312619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271367 + ... + 271404.

It is an arithmetic number, because the mean of its divisors is an integer number (2713860).

Almost surely, 2^10312649 is an apocalyptic number.

10312649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

10312649 is a deficient number, since it is larger than the sum of its proper divisors (542791).

10312649 is an equidigital number, since it uses as much as digits as its factorization.

10312649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542790.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 10312649 is about 3211.3313438510. The cubic root of 10312649 is about 217.6657405826.

The spelling of 10312649 in words is "ten million, three hundred twelve thousand, six hundred forty-nine".