149697000 has 96 divisors (see below), whose sum is σ = 506006280. Its totient is φ = 39916800.

The previous prime is 149696993. The next prime is 149697091. The reversal of 149697000 is 796941.

It can be written as a sum of positive squares in 4 ways, for example, as 19873764 + 129823236 = 4458^2 + 11394^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 684 + ... + 17316.

Almost surely, 2^149697000 is an apocalyptic number.

149697000 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 149697000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253003140).

149697000 is an abundant number, since it is smaller than the sum of its proper divisors (356309280).

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

149697000 is a wasteful number, since it uses less digits than its factorization.

149697000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16660 (or 16643 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 149697000 is about 12235.0725375864. The cubic root of 149697000 is about 530.9712817094.

The spelling of 149697000 in words is "one hundred forty-nine million, six hundred ninety-seven thousand".