149341609 has 4 divisors (see below), whose sum is σ = 149420880. Its totient is φ = 149262340.

The previous prime is 149341597. The next prime is 149341631. The reversal of 149341609 is 906143941.

149341609 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 906143941 = 17713 ⋅51157.

It is a cyclic number.

It is not a de Polignac number, because 149341609 - 2²¹ = 147244457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149141609) 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, 36739 + ... + 40600.

It is an arithmetic number, because the mean of its divisors is an integer number (37355220).

Almost surely, 2^149341609 is an apocalyptic number.

It is an amenable number.

149341609 is a deficient number, since it is larger than the sum of its proper divisors (79271).

149341609 is an equidigital number, since it uses as much as digits as its factorization.

149341609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79270.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 149341609 is about 12220.5404544971. The cubic root of 149341609 is about 530.5507612739.

The spelling of 149341609 in words is "one hundred forty-nine million, three hundred forty-one thousand, six hundred nine".