1057191853 has 4 divisors (see below), whose sum is σ = 1091294848. Its totient is φ = 1023088860.

The previous prime is 1057191761. The next prime is 1057191887. The reversal of 1057191853 is 3581917501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1057191853 is a prime.

It is a super-2 number, since 2×1057191853² = 2235309228099147218, 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 (1057191893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17051451 + ... + 17051512.

It is an arithmetic number, because the mean of its divisors is an integer number (272823712).

Almost surely, 2^1057191853 is an apocalyptic number.

It is an amenable number.

1057191853 is a deficient number, since it is larger than the sum of its proper divisors (34102995).

1057191853 is an equidigital number, since it uses as much as digits as its factorization.

1057191853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34102994.

The product of its (nonzero) digits is 37800, while the sum is 40.

The square root of 1057191853 is about 32514.4868174172. The cubic root of 1057191853 is about 1018.7116416586.

The spelling of 1057191853 in words is "one billion, fifty-seven million, one hundred ninety-one thousand, eight hundred fifty-three".