11157611 has 2 divisors, whose sum is σ = 11157612. Its totient is φ = 11157610.

The previous prime is 11157569. The next prime is 11157623. The reversal of 11157611 is 11675111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11157611 is a prime.

It is not a weakly prime, because it can be changed into another prime (11159611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5578805 + 5578806.

It is an arithmetic number, because the mean of its divisors is an integer number (5578806).

Almost surely, 2^11157611 is an apocalyptic number.

11157611 is a deficient number, since it is larger than the sum of its proper divisors (1).

11157611 is an equidigital number, since it uses as much as digits as its factorization.

11157611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 210, while the sum is 23.

The square root of 11157611 is about 3340.3010343381. The cubic root of 11157611 is about 223.4551690365.

The spelling of 11157611 in words is "eleven million, one hundred fifty-seven thousand, six hundred eleven".