1456491169 has 32 divisors (see below), whose sum is σ = 1784125440. Its totient is φ = 1162119552.

The previous prime is 1456491161. The next prime is 1456491203. The reversal of 1456491169 is 9611946541.

It is a cyclic number.

It is not a de Polignac number, because 1456491169 - 2³ = 1456491161 is a prime.

It is a super-2 number, since 2×1456491169² = 4242733050749973122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1456491161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1015677 + ... + 1017109.

It is an arithmetic number, because the mean of its divisors is an integer number (55753920).

Almost surely, 2^1456491169 is an apocalyptic number.

It is an amenable number.

1456491169 is a deficient number, since it is larger than the sum of its proper divisors (327634271).

1456491169 is a wasteful number, since it uses less digits than its factorization.

1456491169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629.

The product of its digits is 233280, while the sum is 46.

The square root of 1456491169 is about 38164.0035766689. The cubic root of 1456491169 is about 1133.5376560008.

The spelling of 1456491169 in words is "one billion, four hundred fifty-six million, four hundred ninety-one thousand, one hundred sixty-nine".