148331977 has 2 divisors, whose sum is σ = 148331978. Its totient is φ = 148331976.

The previous prime is 148331971. The next prime is 148332007. The reversal of 148331977 is 779133841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93334921 + 54997056 = 9661^2 + 7416^2 .

It is a cyclic number.

It is not a de Polignac number, because 148331977 - 2³ = 148331969 is a prime.

It is equal to p_8355886 and since 148331977 and 8355886 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (148331971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74165988 + 74165989.

It is an arithmetic number, because the mean of its divisors is an integer number (74165989).

Almost surely, 2^148331977 is an apocalyptic number.

It is an amenable number.

148331977 is a deficient number, since it is larger than the sum of its proper divisors (1).

148331977 is an equidigital number, since it uses as much as digits as its factorization.

148331977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 43.

The square root of 148331977 is about 12179.1615885495. The cubic root of 148331977 is about 529.3524511136.

The spelling of 148331977 in words is "one hundred forty-eight million, three hundred thirty-one thousand, nine hundred seventy-seven".