1122908257 has 4 divisors (see below), whose sum is σ = 1159131136. Its totient is φ = 1086685380.

The previous prime is 1122908251. The next prime is 1122908261. The reversal of 1122908257 is 7528092211.

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 not a de Polignac number, because 1122908257 - 2¹¹ = 1122906209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122908251) 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, 18111393 + ... + 18111454.

It is an arithmetic number, because the mean of its divisors is an integer number (289782784).

Almost surely, 2^1122908257 is an apocalyptic number.

It is an amenable number.

1122908257 is a deficient number, since it is larger than the sum of its proper divisors (36222879).

1122908257 is an equidigital number, since it uses as much as digits as its factorization.

1122908257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36222878.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 1122908257 is about 33509.8232910888. The cubic root of 1122908257 is about 1039.3969189023.

The spelling of 1122908257 in words is "one billion, one hundred twenty-two million, nine hundred eight thousand, two hundred fifty-seven".