149139859 has 8 divisors (see below), whose sum is σ = 167095728. Its totient is φ = 131916960.

The previous prime is 149139857. The next prime is 149139863. The reversal of 149139859 is 958931941.

149139859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 149139859 - 2¹ = 149139857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149139857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182812 + ... + 183625.

It is an arithmetic number, because the mean of its divisors is an integer number (20886966).

Almost surely, 2^149139859 is an apocalyptic number.

149139859 is a deficient number, since it is larger than the sum of its proper divisors (17955869).

149139859 is a wasteful number, since it uses less digits than its factorization.

149139859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366485.

The product of its digits is 349920, while the sum is 49.

The square root of 149139859 is about 12212.2831198757. The cubic root of 149139859 is about 530.3117413661.

The spelling of 149139859 in words is "one hundred forty-nine million, one hundred thirty-nine thousand, eight hundred fifty-nine".