1057135798 has 8 divisors (see below), whose sum is σ = 1654647408. Its totient is φ = 505586664.

The previous prime is 1057135771. The next prime is 1057135799. The reversal of 1057135798 is 8975317501.

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

It is a super-2 number, since 2×1057135798² = 2235072190826193608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 22981213 = 1057135798 / (1 + 0 + 5 + 7 + 1 + 3 + 5 + 7 + 9 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057135799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11490561 + ... + 11490652.

It is an arithmetic number, because the mean of its divisors is an integer number (206830926).

Almost surely, 2^1057135798 is an apocalyptic number.

1057135798 is a deficient number, since it is larger than the sum of its proper divisors (597511610).

1057135798 is a wasteful number, since it uses less digits than its factorization.

1057135798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22981238.

The product of its (nonzero) digits is 264600, while the sum is 46.

The square root of 1057135798 is about 32513.6248056103. The cubic root of 1057135798 is about 1018.6936364466.

The spelling of 1057135798 in words is "one billion, fifty-seven million, one hundred thirty-five thousand, seven hundred ninety-eight".