1453478557 has 2 divisors, whose sum is σ = 1453478558. Its totient is φ = 1453478556.

The previous prime is 1453478531. The next prime is 1453478569. The reversal of 1453478557 is 7558743541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1162400836 + 291077721 = 34094^2 + 17061^2 .

It is a cyclic number.

It is not a de Polignac number, because 1453478557 - 2¹⁵ = 1453445789 is a prime.

It is a super-2 number, since 2×1453478557² = 4225199831317604498, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1453478557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1453478657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726739278 + 726739279.

It is an arithmetic number, because the mean of its divisors is an integer number (726739279).

Almost surely, 2^1453478557 is an apocalyptic number.

It is an amenable number.

1453478557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1453478557 is an equidigital number, since it uses as much as digits as its factorization.

1453478557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2352000, while the sum is 49.

The square root of 1453478557 is about 38124.5138591956. The cubic root of 1453478557 is about 1132.7555786363.

The spelling of 1453478557 in words is "one billion, four hundred fifty-three million, four hundred seventy-eight thousand, five hundred fifty-seven".