149647685 has 32 divisors (see below), whose sum is σ = 214617600. Its totient is φ = 98882560.

The previous prime is 149647681. The next prime is 149647691. The reversal of 149647685 is 586746941.

149647685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 149647685 - 2² = 149647681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149647681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24356 + ... + 29874.

It is an arithmetic number, because the mean of its divisors is an integer number (6706800).

Almost surely, 2^149647685 is an apocalyptic number.

It is an amenable number.

149647685 is a deficient number, since it is larger than the sum of its proper divisors (64969915).

149647685 is a wasteful number, since it uses less digits than its factorization.

149647685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5581.

The product of its digits is 1451520, while the sum is 50.

The square root of 149647685 is about 12233.0570586424. The cubic root of 149647685 is about 530.9129689740.

The spelling of 149647685 in words is "one hundred forty-nine million, six hundred forty-seven thousand, six hundred eighty-five".