149031449 has 16 divisors (see below), whose sum is σ = 176563200. Its totient is φ = 123125184.

The previous prime is 149031437. The next prime is 149031451. The reversal of 149031449 is 944130941.

It is a de Polignac number, because none of the positive numbers 2^k-149031449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149031409) 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, 25592 + ... + 30870.

It is an arithmetic number, because the mean of its divisors is an integer number (11035200).

Almost surely, 2^149031449 is an apocalyptic number.

It is an amenable number.

149031449 is a deficient number, since it is larger than the sum of its proper divisors (27531751).

149031449 is a wasteful number, since it uses less digits than its factorization.

149031449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5432.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 149031449 is about 12207.8437490001. The cubic root of 149031449 is about 530.1832154040.

The spelling of 149031449 in words is "one hundred forty-nine million, thirty-one thousand, four hundred forty-nine".