149053449 has 4 divisors (see below), whose sum is σ = 198737936. Its totient is φ = 99368964.

The previous prime is 149053447. The next prime is 149053469. The reversal of 149053449 is 944350941.

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: 944350941 = 3 ⋅314783647.

It is not a de Polignac number, because 149053449 - 2¹ = 149053447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149053447) 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, 24842239 + ... + 24842244.

It is an arithmetic number, because the mean of its divisors is an integer number (49684484).

Almost surely, 2^149053449 is an apocalyptic number.

It is an amenable number.

149053449 is a deficient number, since it is larger than the sum of its proper divisors (49684487).

149053449 is an equidigital number, since it uses as much as digits as its factorization.

149053449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49684486.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 149053449 is about 12208.7447757745. The cubic root of 149053449 is about 530.2093026424.

The spelling of 149053449 in words is "one hundred forty-nine million, fifty-three thousand, four hundred forty-nine".