1009119157 has 4 divisors (see below), whose sum is σ = 1025662156. Its totient is φ = 992576160.

The previous prime is 1009119151. The next prime is 1009119233. The reversal of 1009119157 is 7519119001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7519119001 = 233 ⋅32270897.

It can be written as a sum of positive squares in 2 ways, for example, as 35117476 + 974001681 = 5926^2 + 31209^2 .

It is a cyclic number.

It is not a de Polignac number, because 1009119157 - 2⁷ = 1009119029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009119151) 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, 8271408 + ... + 8271529.

It is an arithmetic number, because the mean of its divisors is an integer number (256415539).

Almost surely, 2^1009119157 is an apocalyptic number.

It is an amenable number.

1009119157 is a deficient number, since it is larger than the sum of its proper divisors (16542999).

1009119157 is an equidigital number, since it uses as much as digits as its factorization.

1009119157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16542998.

The product of its (nonzero) digits is 2835, while the sum is 34.

The square root of 1009119157 is about 31766.6359093940. The cubic root of 1009119157 is about 1003.0305256368.

The spelling of 1009119157 in words is "one billion, nine million, one hundred nineteen thousand, one hundred fifty-seven".