149088690 has 24 divisors (see below), whose sum is σ = 387630828. Its totient is φ = 39756960.

The previous prime is 149088683. The next prime is 149088701. The reversal of 149088690 is 96880941.

149088690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 149010849 + 77841 = 12207^2 + 279^2 .

It is a super-2 number, since 2×149088690² = 44454874971832200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 828181 + ... + 828360.

Almost surely, 2^149088690 is an apocalyptic number.

149088690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149088690 is an abundant number, since it is smaller than the sum of its proper divisors (238542138).

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

149088690 is a wasteful number, since it uses less digits than its factorization.

149088690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656554 (or 1656551 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 149088690 is about 12210.1879592412. The cubic root of 149088690 is about 530.2510854923.

The spelling of 149088690 in words is "one hundred forty-nine million, eighty-eight thousand, six hundred ninety".