1249571053 has 8 divisors (see below), whose sum is σ = 1293517080. Its totient is φ = 1205682240.

The previous prime is 1249571051. The next prime is 1249571083. The reversal of 1249571053 is 3501759421.

It can be written as a sum of positive squares in 4 ways, for example, as 514089 + 1249056964 = 717^2 + 35342^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1249571053 - 2¹ = 1249571051 is a prime.

It is a super-2 number, since 2×1249571053² = 3122855632991057618, 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 (1249571051) 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, 32823 + ... + 59803.

It is an arithmetic number, because the mean of its divisors is an integer number (161689635).

Almost surely, 2^1249571053 is an apocalyptic number.

It is an amenable number.

1249571053 is a deficient number, since it is larger than the sum of its proper divisors (43946027).

1249571053 is a wasteful number, since it uses less digits than its factorization.

1249571053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28607.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 1249571053 is about 35349.2723121707. The cubic root of 1249571053 is about 1077.0941124792.

The spelling of 1249571053 in words is "one billion, two hundred forty-nine million, five hundred seventy-one thousand, fifty-three".