149938986 has 16 divisors (see below), whose sum is σ = 300996000. Its totient is φ = 49793328.

The previous prime is 149938981. The next prime is 149939003. The reversal of 149938986 is 689839941.

It is not an unprimeable number, because it can be changed into a prime (149938981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44836 + ... + 48063.

It is an arithmetic number, because the mean of its divisors is an integer number (18812250).

Almost surely, 2^149938986 is an apocalyptic number.

149938986 is an abundant number, since it is smaller than the sum of its proper divisors (151057014).

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

149938986 is a wasteful number, since it uses less digits than its factorization.

149938986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93173.

The product of its digits is 3359232, while the sum is 57.

The square root of 149938986 is about 12244.9575744467. The cubic root of 149938986 is about 531.2572336547.

It can be divided in two parts, 149 and 938986, that added together give a triangular number (939135 = T₁₃₇₀).

The spelling of 149938986 in words is "one hundred forty-nine million, nine hundred thirty-eight thousand, nine hundred eighty-six".