148915557 has 24 divisors (see below), whose sum is σ = 256636800. Its totient is φ = 85093848.

The previous prime is 148915541. The next prime is 148915561. The reversal of 148915557 is 755519841.

148915557 is a `hidden beast` number, since 1 + 4 + 8 + 91 + 5 + 557 = 666.

It is not a de Polignac number, because 148915557 - 2⁴ = 148915541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148915577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54957 + ... + 57602.

It is an arithmetic number, because the mean of its divisors is an integer number (10693200).

Almost surely, 2^148915557 is an apocalyptic number.

It is an amenable number.

148915557 is a deficient number, since it is larger than the sum of its proper divisors (107721243).

148915557 is a wasteful number, since it uses less digits than its factorization.

148915557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112582 (or 112569 counting only the distinct ones).

The product of its digits is 252000, while the sum is 45.

The square root of 148915557 is about 12203.0962054718. The cubic root of 148915557 is about 530.0457501743.

The spelling of 148915557 in words is "one hundred forty-eight million, nine hundred fifteen thousand, five hundred fifty-seven".