149287145 has 16 divisors (see below), whose sum is σ = 205970688. Its totient is φ = 101751360.

The previous prime is 149287141. The next prime is 149287219. The reversal of 149287145 is 541782941.

It is not a de Polignac number, because 149287145 - 2² = 149287141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149287141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6926 + ... + 18615.

It is an arithmetic number, because the mean of its divisors is an integer number (12873168).

Almost surely, 2^149287145 is an apocalyptic number.

It is an amenable number.

149287145 is a deficient number, since it is larger than the sum of its proper divisors (56683543).

149287145 is a wasteful number, since it uses less digits than its factorization.

149287145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25720.

The product of its digits is 80640, while the sum is 41.

The square root of 149287145 is about 12218.3118719404. The cubic root of 149287145 is about 530.4862571921.

The spelling of 149287145 in words is "one hundred forty-nine million, two hundred eighty-seven thousand, one hundred forty-five".