112871987 has 2 divisors, whose sum is σ = 112871988. Its totient is φ = 112871986.

The previous prime is 112871977. The next prime is 112872029. The reversal of 112871987 is 789178211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112871987 - 2¹² = 112867891 is a prime.

It is not a weakly prime, because it can be changed into another prime (112871917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56435993 + 56435994.

It is an arithmetic number, because the mean of its divisors is an integer number (56435994).

Almost surely, 2^112871987 is an apocalyptic number.

112871987 is a deficient number, since it is larger than the sum of its proper divisors (1).

112871987 is an equidigital number, since it uses as much as digits as its factorization.

112871987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 44.

The square root of 112871987 is about 10624.1228814430. The cubic root of 112871987 is about 483.2761802681.

The spelling of 112871987 in words is "one hundred twelve million, eight hundred seventy-one thousand, nine hundred eighty-seven".