1455479491 has 6 divisors (see below), whose sum is σ = 1521513140. Its totient is φ = 1392197268.

The previous prime is 1455479461. The next prime is 1455479539. The reversal of 1455479491 is 1949745541.

It is not a de Polignac number, because 1455479491 - 2²¹ = 1453382339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1455479461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1375161 + ... + 1376218.

Almost surely, 2^1455479491 is an apocalyptic number.

1455479491 is a deficient number, since it is larger than the sum of its proper divisors (66033649).

1455479491 is an equidigital number, since it uses as much as digits as its factorization.

1455479491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751425 (or 2751402 counting only the distinct ones).

The product of its digits is 907200, while the sum is 49.

The square root of 1455479491 is about 38150.7469258467. The cubic root of 1455479491 is about 1133.2751436579.

The spelling of 1455479491 in words is "one billion, four hundred fifty-five million, four hundred seventy-nine thousand, four hundred ninety-one".