12940951 has 2 divisors, whose sum is σ = 12940952. Its totient is φ = 12940950.

The previous prime is 12940943. The next prime is 12940969. The reversal of 12940951 is 15904921.

It is a weak prime.

It is an emirp because it is prime and its reverse (15904921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12940951 - 2³ = 12940943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12940751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6470475 + 6470476.

It is an arithmetic number, because the mean of its divisors is an integer number (6470476).

Almost surely, 2^12940951 is an apocalyptic number.

12940951 is a deficient number, since it is larger than the sum of its proper divisors (1).

12940951 is an equidigital number, since it uses as much as digits as its factorization.

12940951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 12940951 is about 3597.3533326600. The cubic root of 12940951 is about 234.7769182221.

The spelling of 12940951 in words is "twelve million, nine hundred forty thousand, nine hundred fifty-one".