1056631449 has 4 divisors (see below), whose sum is σ = 1408841936. Its totient is φ = 704420964.

The previous prime is 1056631441. The next prime is 1056631463. The reversal of 1056631449 is 9441366501.

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.

It is not a de Polignac number, because 1056631449 - 2³ = 1056631441 is a prime.

It is a super-2 number, since 2×1056631449² = 2232940038031679202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056631441) 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, 176105239 + ... + 176105244.

It is an arithmetic number, because the mean of its divisors is an integer number (352210484).

Almost surely, 2^1056631449 is an apocalyptic number.

It is an amenable number.

1056631449 is a deficient number, since it is larger than the sum of its proper divisors (352210487).

1056631449 is an equidigital number, since it uses as much as digits as its factorization.

1056631449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352210486.

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

The square root of 1056631449 is about 32505.8679164240. The cubic root of 1056631449 is about 1018.5316078010.

The spelling of 1056631449 in words is "one billion, fifty-six million, six hundred thirty-one thousand, four hundred forty-nine".