149049686 has 16 divisors (see below), whose sum is σ = 225291024. Its totient is φ = 73955424.

The previous prime is 149049673. The next prime is 149049731. The reversal of 149049686 is 686940941.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 149049686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202976 + ... + 203708.

It is an arithmetic number, because the mean of its divisors is an integer number (14080689).

Almost surely, 2^149049686 is an apocalyptic number.

149049686 is a deficient number, since it is larger than the sum of its proper divisors (76241338).

149049686 is a wasteful number, since it uses less digits than its factorization.

149049686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 149049686 is about 12208.5906639546. The cubic root of 149049686 is about 530.2048407208.

The spelling of 149049686 in words is "one hundred forty-nine million, forty-nine thousand, six hundred eighty-six".