148639918 has 16 divisors (see below), whose sum is σ = 257287680. Its totient is φ = 63083736.

The previous prime is 148639913. The next prime is 148639919. The reversal of 148639918 is 819936841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148639913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50098 + ... + 52981.

It is an arithmetic number, because the mean of its divisors is an integer number (16080480).

Almost surely, 2^148639918 is an apocalyptic number.

148639918 is a deficient number, since it is larger than the sum of its proper divisors (108647762).

148639918 is a wasteful number, since it uses less digits than its factorization.

148639918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103191.

The product of its digits is 373248, while the sum is 49.

The square root of 148639918 is about 12191.7971603862. The cubic root of 148639918 is about 529.7185143467.

The spelling of 148639918 in words is "one hundred forty-eight million, six hundred thirty-nine thousand, nine hundred eighteen".