1126823257 has 16 divisors (see below), whose sum is σ = 1391385600. Its totient is φ = 909029184.

The previous prime is 1126823251. The next prime is 1126823263. The reversal of 1126823257 is 7523286211.

It is an interprime number because it is at equal distance from previous prime (1126823251) and next prime (1126823263).

It is not a de Polignac number, because 1126823257 - 2³ = 1126823249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1126823251) 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, 90793 + ... + 102454.

It is an arithmetic number, because the mean of its divisors is an integer number (86961600).

Almost surely, 2^1126823257 is an apocalyptic number.

1126823257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1126823257 is a deficient number, since it is larger than the sum of its proper divisors (264562343).

1126823257 is an equidigital number, since it uses as much as digits as its factorization.

1126823257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193285 (or 193271 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 1126823257 is about 33568.1881697538. The cubic root of 1126823257 is about 1040.6034641805.

The spelling of 1126823257 in words is "one billion, one hundred twenty-six million, eight hundred twenty-three thousand, two hundred fifty-seven".