149666900 has 18 divisors (see below), whose sum is σ = 324777390. Its totient is φ = 59866720.

The previous prime is 149666879. The next prime is 149666917. The reversal of 149666900 is 9666941.

It can be written as a sum of positive squares in 3 ways, for example, as 25745476 + 123921424 = 5074^2 + 11132^2 .

It is a super-2 number, since 2×149666900² = 44800361911220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 748235 + ... + 748434.

Almost surely, 2^149666900 is an apocalyptic number.

149666900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149666900 is an abundant number, since it is smaller than the sum of its proper divisors (175110490).

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

149666900 is a wasteful number, since it uses less digits than its factorization.

149666900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496683 (or 1496676 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 149666900 is about 12233.8424053933. The cubic root of 149666900 is about 530.9356913571.

Adding to 149666900 its sum of digits (41), we get a palindrome (149666941).

The spelling of 149666900 in words is "one hundred forty-nine million, six hundred sixty-six thousand, nine hundred".