112131961 has 2 divisors, whose sum is σ = 112131962. Its totient is φ = 112131960.

The previous prime is 112131953. The next prime is 112132001. The reversal of 112131961 is 169131211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92160000 + 19971961 = 9600^2 + 4469^2 .

It is a cyclic number.

It is not a de Polignac number, because 112131961 - 2³ = 112131953 is a prime.

It is not a weakly prime, because it can be changed into another prime (112131931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56065980 + 56065981.

It is an arithmetic number, because the mean of its divisors is an integer number (56065981).

Almost surely, 2^112131961 is an apocalyptic number.

It is an amenable number.

112131961 is a deficient number, since it is larger than the sum of its proper divisors (1).

112131961 is an equidigital number, since it uses as much as digits as its factorization.

112131961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 25.

The square root of 112131961 is about 10589.2379801381. The cubic root of 112131961 is about 482.2176909040.

The spelling of 112131961 in words is "one hundred twelve million, one hundred thirty-one thousand, nine hundred sixty-one".