1094257857 has 24 divisors (see below), whose sum is σ = 1851511392. Its totient is φ = 568444800.

The previous prime is 1094257831. The next prime is 1094257903. The reversal of 1094257857 is 7587524901.

It is not a de Polignac number, because 1094257857 - 2⁶ = 1094257793 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1094257357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336744 + ... + 339977.

It is an arithmetic number, because the mean of its divisors is an integer number (77146308).

Almost surely, 2^1094257857 is an apocalyptic number.

It is an amenable number.

1094257857 is a deficient number, since it is larger than the sum of its proper divisors (757253535).

1094257857 is a wasteful number, since it uses less digits than its factorization.

1094257857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676749 (or 676742 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 48.

The square root of 1094257857 is about 33079.5685733656. The cubic root of 1094257857 is about 1030.4807687406.

The spelling of 1094257857 in words is "one billion, ninety-four million, two hundred fifty-seven thousand, eight hundred fifty-seven".