113621647 has 2 divisors, whose sum is σ = 113621648. Its totient is φ = 113621646.

The previous prime is 113621617. The next prime is 113621657. The reversal of 113621647 is 746126311.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113621647 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113621617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56810823 + 56810824.

It is an arithmetic number, because the mean of its divisors is an integer number (56810824).

Almost surely, 2^113621647 is an apocalyptic number.

113621647 is a deficient number, since it is larger than the sum of its proper divisors (1).

113621647 is an equidigital number, since it uses as much as digits as its factorization.

113621647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 113621647 is about 10659.3455239991. The cubic root of 113621647 is about 484.3437427322.

Adding to 113621647 its reverse (746126311), we get a palindrome (859747958).

The spelling of 113621647 in words is "one hundred thirteen million, six hundred twenty-one thousand, six hundred forty-seven".