149206705 has 16 divisors (see below), whose sum is σ = 189889920. Its totient is φ = 112160512.

The previous prime is 149206697. The next prime is 149206709. The reversal of 149206705 is 507602941.

149206705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 149206705 - 2³ = 149206697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149206709) 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, 74406 + ... + 76384.

It is an arithmetic number, because the mean of its divisors is an integer number (11868120).

Almost surely, 2^149206705 is an apocalyptic number.

It is an amenable number.

149206705 is a deficient number, since it is larger than the sum of its proper divisors (40683215).

149206705 is a wasteful number, since it uses less digits than its factorization.

149206705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 149206705 is about 12215.0196479580. The cubic root of 149206705 is about 530.3909599019.

The spelling of 149206705 in words is "one hundred forty-nine million, two hundred six thousand, seven hundred five".