11206157 has 4 divisors (see below), whose sum is σ = 11359740. Its totient is φ = 11052576.

The previous prime is 11206147. The next prime is 11206171. The reversal of 11206157 is 75160211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75160211 = 7 ⋅10737173.

It can be written as a sum of positive squares in 2 ways, for example, as 5354596 + 5851561 = 2314^2 + 2419^2 .

It is a cyclic number.

It is not a de Polignac number, because 11206157 - 2²² = 7011853 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11206147) 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, 76682 + ... + 76827.

It is an arithmetic number, because the mean of its divisors is an integer number (2839935).

Almost surely, 2^11206157 is an apocalyptic number.

It is an amenable number.

11206157 is a deficient number, since it is larger than the sum of its proper divisors (153583).

11206157 is an equidigital number, since it uses as much as digits as its factorization.

11206157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153582.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 11206157 is about 3347.5598575679. The cubic root of 11206157 is about 223.7787795238.

Adding to 11206157 its reverse (75160211), we get a palindrome (86366368).

The spelling of 11206157 in words is "eleven million, two hundred six thousand, one hundred fifty-seven".