112639621 has 2 divisors, whose sum is σ = 112639622. Its totient is φ = 112639620.

The previous prime is 112639613. The next prime is 112639627. The reversal of 112639621 is 126936211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106812225 + 5827396 = 10335^2 + 2414^2 .

It is a cyclic number.

It is not a de Polignac number, because 112639621 - 2³ = 112639613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112639627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56319810 + 56319811.

It is an arithmetic number, because the mean of its divisors is an integer number (56319811).

Almost surely, 2^112639621 is an apocalyptic number.

It is an amenable number.

112639621 is a deficient number, since it is larger than the sum of its proper divisors (1).

112639621 is an equidigital number, since it uses as much as digits as its factorization.

112639621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 112639621 is about 10613.1814739973. The cubic root of 112639621 is about 482.9443172881.

The spelling of 112639621 in words is "one hundred twelve million, six hundred thirty-nine thousand, six hundred twenty-one".