149386660 has 24 divisors (see below), whose sum is σ = 313944120. Its totient is φ = 59710464.

The previous prime is 149386631. The next prime is 149386663. The reversal of 149386660 is 66683941.

It can be written as a sum of positive squares in 4 ways, for example, as 15429184 + 133957476 = 3928^2 + 11574^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (149386663) 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, 45556 + ... + 48724.

It is an arithmetic number, because the mean of its divisors is an integer number (13081005).

Almost surely, 2^149386660 is an apocalyptic number.

149386660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149386660 is an abundant number, since it is smaller than the sum of its proper divisors (164557460).

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

149386660 is a wasteful number, since it uses less digits than its factorization.

149386660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5535 (or 5533 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 149386660 is about 12222.3835645916. The cubic root of 149386660 is about 530.6041052805.

The spelling of 149386660 in words is "one hundred forty-nine million, three hundred eighty-six thousand, six hundred sixty".