149611686 has 32 divisors (see below), whose sum is σ = 348427008. Its totient is φ = 41939040.

The previous prime is 149611607. The next prime is 149611687. The reversal of 149611686 is 686116941.

149611686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149611687) 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, 31380 + ... + 35831.

It is an arithmetic number, because the mean of its divisors is an integer number (10888344).

Almost surely, 2^149611686 is an apocalyptic number.

149611686 is an abundant number, since it is smaller than the sum of its proper divisors (198815322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149611686 is a wasteful number, since it uses less digits than its factorization.

149611686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67276.

The product of its digits is 62208, while the sum is 42.

The square root of 149611686 is about 12231.5855881402. The cubic root of 149611686 is about 530.8703937108.

The spelling of 149611686 in words is "one hundred forty-nine million, six hundred eleven thousand, six hundred eighty-six".