149081888 has 12 divisors (see below), whose sum is σ = 293505030. Its totient is φ = 74540928.

The previous prime is 149081887. The next prime is 149081897. The reversal of 149081888 is 888180941.

It can be written as a sum of positive squares in only one way, i.e., 147573904 + 1507984 = 12148^2 + 1228^2 .

It is not an unprimeable number, because it can be changed into a prime (149081887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2329373 + ... + 2329436.

Almost surely, 2^149081888 is an apocalyptic number.

It is an amenable number.

149081888 is a deficient number, since it is larger than the sum of its proper divisors (144423142).

149081888 is an equidigital number, since it uses as much as digits as its factorization.

149081888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4658819 (or 4658811 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 47.

The square root of 149081888 is about 12209.9094181734. The cubic root of 149081888 is about 530.2430213377.

The spelling of 149081888 in words is "one hundred forty-nine million, eighty-one thousand, eight hundred eighty-eight".