149378275 has 12 divisors (see below), whose sum is σ = 191617200. Its totient is φ = 115381280.

The previous prime is 149378263. The next prime is 149378279. The reversal of 149378275 is 572873941.

It is not a de Polignac number, because 149378275 - 2⁹ = 149377763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149378279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102295 + ... + 103744.

It is an arithmetic number, because the mean of its divisors is an integer number (15968100).

Almost surely, 2^149378275 is an apocalyptic number.

149378275 is a deficient number, since it is larger than the sum of its proper divisors (42238925).

149378275 is a wasteful number, since it uses less digits than its factorization.

149378275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206078 (or 206073 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 149378275 is about 12222.0405415790. The cubic root of 149378275 is about 530.5941775786.

The spelling of 149378275 in words is "one hundred forty-nine million, three hundred seventy-eight thousand, two hundred seventy-five".