148670557 has 6 divisors (see below), whose sum is σ = 172943358. Its totient is φ = 127431864.

The previous prime is 148670549. The next prime is 148670567. The reversal of 148670557 is 755076841.

It can be written as a sum of positive squares in only one way, i.e., 123409881 + 25260676 = 11109^2 + 5026^2 .

It is not a de Polignac number, because 148670557 - 2³ = 148670549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148670527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1516998 + ... + 1517095.

It is an arithmetic number, because the mean of its divisors is an integer number (28823893).

Almost surely, 2^148670557 is an apocalyptic number.

It is an amenable number.

148670557 is a deficient number, since it is larger than the sum of its proper divisors (24272801).

148670557 is an equidigital number, since it uses as much as digits as its factorization.

148670557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3034107 (or 3034100 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 148670557 is about 12193.0536372149. The cubic root of 148670557 is about 529.7549086315.

The spelling of 148670557 in words is "one hundred forty-eight million, six hundred seventy thousand, five hundred fifty-seven".