149770285 has 16 divisors (see below), whose sum is σ = 205598592. Its totient is φ = 102600000.

The previous prime is 149770279. The next prime is 149770301. The reversal of 149770285 is 582077941.

It is not a de Polignac number, because 149770285 - 2²³ = 141381677 is a prime.

It is a super-2 number, since 2×149770285² = 44862276537962450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65410 + ... + 67660.

It is an arithmetic number, because the mean of its divisors is an integer number (12849912).

Almost surely, 2^149770285 is an apocalyptic number.

It is an amenable number.

149770285 is a deficient number, since it is larger than the sum of its proper divisors (55828307).

149770285 is a wasteful number, since it uses less digits than its factorization.

149770285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4164.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 149770285 is about 12238.0670450852. The cubic root of 149770285 is about 531.0579142231.

The spelling of 149770285 in words is "one hundred forty-nine million, seven hundred seventy thousand, two hundred eighty-five".