149135645 has 16 divisors (see below), whose sum is σ = 191782080. Its totient is φ = 110932224.

The previous prime is 149135639. The next prime is 149135659. The reversal of 149135645 is 546531941.

It is a cyclic number.

It is not a de Polignac number, because 149135645 - 2⁴ = 149135629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149135599 and 149135608.

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, 3515 + ... + 17624.

It is an arithmetic number, because the mean of its divisors is an integer number (11986380).

Almost surely, 2^149135645 is an apocalyptic number.

It is an amenable number.

149135645 is a deficient number, since it is larger than the sum of its proper divisors (42646435).

149135645 is a wasteful number, since it uses less digits than its factorization.

149135645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21244.

The product of its digits is 64800, while the sum is 38.

The square root of 149135645 is about 12212.1105874456. The cubic root of 149135645 is about 530.3067466032.

The spelling of 149135645 in words is "one hundred forty-nine million, one hundred thirty-five thousand, six hundred forty-five".