1053747421157 has 16 divisors (see below), whose sum is σ = 1121630788080. Its totient is φ = 986521525248.

The previous prime is 1053747421109. The next prime is 1053747421171. The reversal of 1053747421157 is 7511247473501.

It can be written as a sum of positive squares in 8 ways, for example, as 718559687041 + 335187734116 = 847679^2 + 578954^2 .

It is a cyclic number.

It is not a de Polignac number, because 1053747421157 - 2¹⁸ = 1053747159013 is a prime.

It is a super-2 number, since 2×1053747421157² (a number of 25 digits) 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 (1053747426157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17347643 + ... + 17408279.

It is an arithmetic number, because the mean of its divisors is an integer number (70101924255).

Almost surely, 2^{1053747421157} is an apocalyptic number.

1053747421157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1053747421157 is a deficient number, since it is larger than the sum of its proper divisors (67883366923).

1053747421157 is a wasteful number, since it uses less digits than its factorization.

1053747421157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66040.

The product of its (nonzero) digits is 823200, while the sum is 47.

The spelling of 1053747421157 in words is "one trillion, fifty-three billion, seven hundred forty-seven million, four hundred twenty-one thousand, one hundred fifty-seven".