148031987 has 2 divisors, whose sum is σ = 148031988. Its totient is φ = 148031986.

The previous prime is 148031981. The next prime is 148032013. The reversal of 148031987 is 789130841.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 148031987 - 2²⁴ = 131254771 is a prime.

It is not a weakly prime, because it can be changed into another prime (148031981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74015993 + 74015994.

It is an arithmetic number, because the mean of its divisors is an integer number (74015994).

Almost surely, 2^148031987 is an apocalyptic number.

148031987 is a deficient number, since it is larger than the sum of its proper divisors (1).

148031987 is an equidigital number, since it uses as much as digits as its factorization.

148031987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 148031987 is about 12166.8396471721. The cubic root of 148031987 is about 528.9953520817.

The spelling of 148031987 in words is "one hundred forty-eight million, thirty-one thousand, nine hundred eighty-seven".