148959997 has 2 divisors, whose sum is σ = 148959998. Its totient is φ = 148959996.

The previous prime is 148959989. The next prime is 148960003. The reversal of 148959997 is 799959841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129299641 + 19660356 = 11371^2 + 4434^2 .

It is a cyclic number.

It is not a de Polignac number, because 148959997 - 2³ = 148959989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148959907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74479998 + 74479999.

It is an arithmetic number, because the mean of its divisors is an integer number (74479999).

Almost surely, 2^148959997 is an apocalyptic number.

It is an amenable number.

148959997 is a deficient number, since it is larger than the sum of its proper divisors (1).

148959997 is an equidigital number, since it uses as much as digits as its factorization.

148959997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7348320, while the sum is 61.

The square root of 148959997 is about 12204.9169190126. The cubic root of 148959997 is about 530.0984710829.

The spelling of 148959997 in words is "one hundred forty-eight million, nine hundred fifty-nine thousand, nine hundred ninety-seven".