149508745 has 16 divisors (see below), whose sum is σ = 183096720. Its totient is φ = 117172224.

The previous prime is 149508713. The next prime is 149508757. The reversal of 149508745 is 547805941.

It can be written as a sum of positive squares in 8 ways, for example, as 3485689 + 146023056 = 1867^2 + 12084^2 .

It is a cyclic number.

It is not a de Polignac number, because 149508745 - 2⁵ = 149508713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56001 + ... + 58609.

It is an arithmetic number, because the mean of its divisors is an integer number (11443545).

Almost surely, 2^149508745 is an apocalyptic number.

It is an amenable number.

149508745 is a deficient number, since it is larger than the sum of its proper divisors (33587975).

149508745 is a wasteful number, since it uses less digits than its factorization.

149508745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844.

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 149508745 is about 12227.3768650516. The cubic root of 149508745 is about 530.7486098468.

The spelling of 149508745 in words is "one hundred forty-nine million, five hundred eight thousand, seven hundred forty-five".