149365690 has 8 divisors (see below), whose sum is σ = 268858260. Its totient is φ = 59746272.

The previous prime is 149365663. The next prime is 149365691. The reversal of 149365690 is 96563941.

It can be written as a sum of positive squares in 2 ways, for example, as 142969849 + 6395841 = 11957^2 + 2529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×149365690² = 44620218698352200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149365691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7468275 + ... + 7468294.

Almost surely, 2^149365690 is an apocalyptic number.

149365690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149365690 is a deficient number, since it is larger than the sum of its proper divisors (119492570).

149365690 is a wasteful number, since it uses less digits than its factorization.

149365690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14936576.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 149365690 is about 12221.5256821724. The cubic root of 149365690 is about 530.5792764487.

The spelling of 149365690 in words is "one hundred forty-nine million, three hundred sixty-five thousand, six hundred ninety".