149493859 has 16 divisors (see below), whose sum is σ = 159989760. Its totient is φ = 139376160.

The previous prime is 149493857. The next prime is 149493863. The reversal of 149493859 is 958394941.

It is a cyclic number.

It is not a de Polignac number, because 149493859 - 2¹ = 149493857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149493857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177762 + ... + 178600.

It is an arithmetic number, because the mean of its divisors is an integer number (9999360).

Almost surely, 2^149493859 is an apocalyptic number.

149493859 is a deficient number, since it is larger than the sum of its proper divisors (10495901).

149493859 is a wasteful number, since it uses less digits than its factorization.

149493859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050.

The product of its digits is 1399680, while the sum is 52.

The square root of 149493859 is about 12226.7681338938. The cubic root of 149493859 is about 530.7309944089.

The spelling of 149493859 in words is "one hundred forty-nine million, four hundred ninety-three thousand, eight hundred fifty-nine".