1449521146 has 4 divisors (see below), whose sum is σ = 2174281722. Its totient is φ = 724760572.

The previous prime is 1449521137. The next prime is 1449521207. The reversal of 1449521146 is 6411259441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 851180625 + 598340521 = 29175^2 + 24461^2 .

It is a super-2 number, since 2×1449521146² = 4202223105402306632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362380285 + ... + 362380288.

Almost surely, 2^1449521146 is an apocalyptic number.

1449521146 is a deficient number, since it is larger than the sum of its proper divisors (724760576).

1449521146 is an equidigital number, since it uses as much as digits as its factorization.

1449521146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724760575.

The product of its digits is 34560, while the sum is 37.

The square root of 1449521146 is about 38072.5773490579. The cubic root of 1449521146 is about 1131.7265865039.

The spelling of 1449521146 in words is "one billion, four hundred forty-nine million, five hundred twenty-one thousand, one hundred forty-six".