148149477 has 12 divisors (see below), whose sum is σ = 244564320. Its totient is φ = 84656808.

The previous prime is 148149461. The next prime is 148149481. The reversal of 148149477 is 774941841.

It is a happy number.

148149477 is a `hidden beast` number, since 14 + 81 + 494 + 77 = 666.

It is not a de Polignac number, because 148149477 - 2⁴ = 148149461 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148149457) 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 11 ways as a sum of consecutive naturals, for example, 1175727 + ... + 1175852.

It is an arithmetic number, because the mean of its divisors is an integer number (20380360).

Almost surely, 2^148149477 is an apocalyptic number.

It is an amenable number.

148149477 is a deficient number, since it is larger than the sum of its proper divisors (96414843).

148149477 is a wasteful number, since it uses less digits than its factorization.

148149477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351592 (or 2351589 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 148149477 is about 12171.6669770414. Note that the first 3 decimals coincide. The cubic root of 148149477 is about 529.1352660503.

The spelling of 148149477 in words is "one hundred forty-eight million, one hundred forty-nine thousand, four hundred seventy-seven".