12501961 has 8 divisors (see below), whose sum is σ = 12667424. Its totient is φ = 12337920.

The previous prime is 12501941. The next prime is 12501989. The reversal of 12501961 is 16910521.

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 12501961 - 2⁷ = 12501833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12501901) 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, 40570 + ... + 40876.

It is an arithmetic number, because the mean of its divisors is an integer number (1583428).

Almost surely, 2^12501961 is an apocalyptic number.

It is an amenable number.

12501961 is a deficient number, since it is larger than the sum of its proper divisors (165463).

12501961 is a wasteful number, since it uses less digits than its factorization.

12501961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 12501961 is about 3535.8112223364. The cubic root of 12501961 is about 232.0915772537.

The spelling of 12501961 in words is "twelve million, five hundred one thousand, nine hundred sixty-one".