149990345 has 4 divisors (see below), whose sum is σ = 179988420. Its totient is φ = 119992272.

The previous prime is 149990329. The next prime is 149990359. The reversal of 149990345 is 543099941.

It is a happy number.

149990345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85525504 + 64464841 = 9248^2 + 8029^2 .

It is a cyclic number.

It is not a de Polignac number, because 149990345 - 2⁴ = 149990329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149990296 and 149990305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14999030 + ... + 14999039.

It is an arithmetic number, because the mean of its divisors is an integer number (44997105).

Almost surely, 2^149990345 is an apocalyptic number.

It is an amenable number.

149990345 is a deficient number, since it is larger than the sum of its proper divisors (29998075).

149990345 is an equidigital number, since it uses as much as digits as its factorization.

149990345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29998074.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 149990345 is about 12247.0545438485. The cubic root of 149990345 is about 531.3178843817.

The spelling of 149990345 in words is "one hundred forty-nine million, nine hundred ninety thousand, three hundred forty-five".