149018660 has 48 divisors (see below), whose sum is σ = 363726720. Its totient is φ = 50223360.

The previous prime is 149018629. The next prime is 149018671. The reversal of 149018660 is 66810941.

It is a super-2 number, since 2×149018660² = 44413122056391200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 149018660.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 761 + ... + 17280.

It is an arithmetic number, because the mean of its divisors is an integer number (7577640).

Almost surely, 2^149018660 is an apocalyptic number.

149018660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149018660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181863360).

149018660 is an abundant number, since it is smaller than the sum of its proper divisors (214708060).

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

149018660 is a wasteful number, since it uses less digits than its factorization.

149018660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18116 (or 18114 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 149018660 is about 12207.3199351864. The cubic root of 149018660 is about 530.1680492379.

The spelling of 149018660 in words is "one hundred forty-nine million, eighteen thousand, six hundred sixty".