1453432261 has 12 divisors (see below), whose sum is σ = 1560457612. Its totient is φ = 1352647296.

The previous prime is 1453432259. The next prime is 1453432291. The reversal of 1453432261 is 1622343541.

It can be written as a sum of positive squares in 2 ways, for example, as 552532036 + 900900225 = 23506^2 + 30015^2 .

It is not a de Polignac number, because 1453432261 - 2¹ = 1453432259 is a prime.

It is a super-2 number, since 2×1453432261² = 4224930674631144242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453432291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17556 + ... + 56701.

Almost surely, 2^1453432261 is an apocalyptic number.

It is an amenable number.

1453432261 is a deficient number, since it is larger than the sum of its proper divisors (107025351).

1453432261 is an equidigital number, since it uses as much as digits as its factorization.

1453432261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74340 (or 74317 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 1453432261 is about 38123.9066859628. The cubic root of 1453432261 is about 1132.7435517168.

The spelling of 1453432261 in words is "one billion, four hundred fifty-three million, four hundred thirty-two thousand, two hundred sixty-one".