149673770 has 16 divisors (see below), whose sum is σ = 269598888. Its totient is φ = 59828160.

The previous prime is 149673761. The next prime is 149673781. The reversal of 149673770 is 77376941.

It can be written as a sum of positive squares in 4 ways, for example, as 82973881 + 66699889 = 9109^2 + 8167^2 .

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, 13112 + ... + 21708.

Almost surely, 2^149673770 is an apocalyptic number.

149673770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149673770 is a deficient number, since it is larger than the sum of its proper divisors (119925118).

149673770 is a wasteful number, since it uses less digits than its factorization.

149673770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10345.

The product of its (nonzero) digits is 222264, while the sum is 44.

The square root of 149673770 is about 12234.1231806779. The cubic root of 149673770 is about 530.9438148910.

The spelling of 149673770 in words is "one hundred forty-nine million, six hundred seventy-three thousand, seven hundred seventy".