11942851 has 2 divisors, whose sum is σ = 11942852. Its totient is φ = 11942850.

The previous prime is 11942807. The next prime is 11942893. The reversal of 11942851 is 15824911.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11942851 - 2⁹ = 11942339 is a prime.

It is not a weakly prime, because it can be changed into another prime (11942251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5971425 + 5971426.

It is an arithmetic number, because the mean of its divisors is an integer number (5971426).

Almost surely, 2^11942851 is an apocalyptic number.

11942851 is the 1546-th centered decagonal number.

11942851 is a deficient number, since it is larger than the sum of its proper divisors (1).

11942851 is an equidigital number, since it uses as much as digits as its factorization.

11942851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 31.

The square root of 11942851 is about 3455.8430230553. The cubic root of 11942851 is about 228.5788296153.

The spelling of 11942851 in words is "eleven million, nine hundred forty-two thousand, eight hundred fifty-one".