149266378 has 12 divisors (see below), whose sum is σ = 225673650. Its totient is φ = 74046440.

The previous prime is 149266367. The next prime is 149266387. The reversal of 149266378 is 873662941.

It can be written as a sum of positive squares in only one way, i.e., 148425489 + 840889 = 12183^2 + 917^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32148 + ... + 36496.

Almost surely, 2^149266378 is an apocalyptic number.

149266378 is a deficient number, since it is larger than the sum of its proper divisors (76407272).

149266378 is an equidigital number, since it uses as much as digits as its factorization.

149266378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4613 (or 4482 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 149266378 is about 12217.4620113999. The cubic root of 149266378 is about 530.4616578002.

The spelling of 149266378 in words is "one hundred forty-nine million, two hundred sixty-six thousand, three hundred seventy-eight".