112131457 has 2 divisors, whose sum is σ = 112131458. Its totient is φ = 112131456.

The previous prime is 112131427. The next prime is 112131469. The reversal of 112131457 is 754131211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76895361 + 35236096 = 8769^2 + 5936^2 .

It is an emirp because it is prime and its reverse (754131211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112131457 is a prime.

It is not a weakly prime, because it can be changed into another prime (112131427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56065728 + 56065729.

It is an arithmetic number, because the mean of its divisors is an integer number (56065729).

Almost surely, 2^112131457 is an apocalyptic number.

It is an amenable number.

112131457 is a deficient number, since it is larger than the sum of its proper divisors (1).

112131457 is an equidigital number, since it uses as much as digits as its factorization.

112131457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 25.

The square root of 112131457 is about 10589.2141823650. The cubic root of 112131457 is about 482.2169684276.

Adding to 112131457 its reverse (754131211), we get a palindrome (866262668).

The spelling of 112131457 in words is "one hundred twelve million, one hundred thirty-one thousand, four hundred fifty-seven".