148639772 has 24 divisors (see below), whose sum is σ = 280624176. Its totient is φ = 68626688.

The previous prime is 148639763. The next prime is 148639783. The reversal of 148639772 is 277936841.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17018 + ... + 24225.

It is an arithmetic number, because the mean of its divisors is an integer number (11692674).

Almost surely, 2^148639772 is an apocalyptic number.

It is an amenable number.

148639772 is a deficient number, since it is larger than the sum of its proper divisors (131984404).

148639772 is a wasteful number, since it uses less digits than its factorization.

148639772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41317 (or 41315 counting only the distinct ones).

The product of its digits is 508032, while the sum is 47.

The square root of 148639772 is about 12191.7911727523. The cubic root of 148639772 is about 529.7183409098.

The spelling of 148639772 in words is "one hundred forty-eight million, six hundred thirty-nine thousand, seven hundred seventy-two".