149296686 has 64 divisors (see below), whose sum is σ = 394191360. Its totient is φ = 36495360.

The previous prime is 149296673. The next prime is 149296687. The reversal of 149296686 is 686692941.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149296687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1651 + ... + 17358.

It is an arithmetic number, because the mean of its divisors is an integer number (6159240).

Almost surely, 2^149296686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149296686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197095680).

149296686 is an abundant number, since it is smaller than the sum of its proper divisors (244894674).

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

149296686 is a wasteful number, since it uses less digits than its factorization.

149296686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19049.

The product of its digits is 1119744, while the sum is 51.

The square root of 149296686 is about 12218.7023042547. The cubic root of 149296686 is about 530.4975581463.

It can be divided in two parts, 149 and 296686, that added together give a triangular number (296835 = T₇₇₀).

The spelling of 149296686 in words is "one hundred forty-nine million, two hundred ninety-six thousand, six hundred eighty-six".