148739957 has 2 divisors, whose sum is σ = 148739958. Its totient is φ = 148739956.

The previous prime is 148739947. The next prime is 148739993. The reversal of 148739957 is 759937841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91374481 + 57365476 = 9559^2 + 7574^2 .

It is a cyclic number.

It is not a de Polignac number, because 148739957 - 2⁶ = 148739893 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 148739899 and 148739908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148739917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74369978 + 74369979.

It is an arithmetic number, because the mean of its divisors is an integer number (74369979).

Almost surely, 2^148739957 is an apocalyptic number.

It is an amenable number.

148739957 is a deficient number, since it is larger than the sum of its proper divisors (1).

148739957 is an equidigital number, since it uses as much as digits as its factorization.

148739957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 53.

The square root of 148739957 is about 12195.8991878418. The cubic root of 148739957 is about 529.8373263660.

The spelling of 148739957 in words is "one hundred forty-eight million, seven hundred thirty-nine thousand, nine hundred fifty-seven".