1111000157 has 2 divisors, whose sum is σ = 1111000158. Its totient is φ = 1111000156.

The previous prime is 1111000139. The next prime is 1111000169. The reversal of 1111000157 is 7510001111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 770007001 + 340993156 = 27749^2 + 18466^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111000157 - 2¹⁴ = 1110983773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111000057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555500078 + 555500079.

It is an arithmetic number, because the mean of its divisors is an integer number (555500079).

Almost surely, 2^1111000157 is an apocalyptic number.

It is an amenable number.

1111000157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111000157 is an equidigital number, since it uses as much as digits as its factorization.

1111000157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35, while the sum is 17.

The square root of 1111000157 is about 33331.6689801156. The cubic root of 1111000157 is about 1035.7096914816.

Adding to 1111000157 its reverse (7510001111), we get a palindrome (8621001268).

The spelling of 1111000157 in words is "one billion, one hundred eleven million, one hundred fifty-seven", and thus it is an aban number.