12652981 has 16 divisors (see below), whose sum is σ = 14836608. Its totient is φ = 10662400.

The previous prime is 12652957. The next prime is 12652987. The reversal of 12652981 is 18925621.

It is not a de Polignac number, because 12652981 - 2¹³ = 12644789 is a prime.

It is a super-2 number, since 2×12652981² = 320195856372722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12652987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12801 + ... + 13753.

It is an arithmetic number, because the mean of its divisors is an integer number (927288).

Almost surely, 2^12652981 is an apocalyptic number.

12652981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12652981 is a deficient number, since it is larger than the sum of its proper divisors (2183627).

12652981 is a wasteful number, since it uses less digits than its factorization.

12652981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052.

The product of its digits is 8640, while the sum is 34.

The square root of 12652981 is about 3557.1028942104. The cubic root of 12652981 is about 233.0223719362.

The spelling of 12652981 in words is "twelve million, six hundred fifty-two thousand, nine hundred eighty-one".