1453758849 has 6 divisors (see below), whose sum is σ = 2099873906. Its totient is φ = 969172560.

The previous prime is 1453758829. The next prime is 1453758871. The reversal of 1453758849 is 9488573541.

1453758849 is a `hidden beast` number, since 1 + 4 + 53 + 7 + 588 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1042967025 + 410791824 = 32295^2 + 20268^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1453758849 is a prime.

It is a super-2 number, since 2×1453758849² = 4226829582091609602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1453758795 and 1453758804.

It is not an unprimeable number, because it can be changed into a prime (1453758829) 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, 80764372 + ... + 80764389.

Almost surely, 2^1453758849 is an apocalyptic number.

It is an amenable number.

1453758849 is a deficient number, since it is larger than the sum of its proper divisors (646115057).

1453758849 is a wasteful number, since it uses less digits than its factorization.

1453758849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161528767 (or 161528764 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The square root of 1453758849 is about 38128.1896895197. The cubic root of 1453758849 is about 1132.8283883149.

The spelling of 1453758849 in words is "one billion, four hundred fifty-three million, seven hundred fifty-eight thousand, eight hundred forty-nine".