1053734557 has 8 divisors (see below), whose sum is σ = 1072165752. Its totient is φ = 1035340800.

The previous prime is 1053734533. The next prime is 1053734573. The reversal of 1053734557 is 7554373501.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 58079641 + 995654916 = 7621^2 + 31554^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1053734557 is a prime.

It is a super-2 number, since 2×1053734557² = 2220713033231972498, 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 (1053734587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50757 + ... + 68437.

It is an arithmetic number, because the mean of its divisors is an integer number (134020719).

Almost surely, 2^1053734557 is an apocalyptic number.

It is an amenable number.

1053734557 is a deficient number, since it is larger than the sum of its proper divisors (18431195).

1053734557 is an equidigital number, since it uses as much as digits as its factorization.

1053734557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18719.

The product of its (nonzero) digits is 220500, while the sum is 40.

The square root of 1053734557 is about 32461.2778091067. The cubic root of 1053734557 is about 1017.5999437391.

The spelling of 1053734557 in words is "one billion, fifty-three million, seven hundred thirty-four thousand, five hundred fifty-seven".