11578157 has 2 divisors, whose sum is σ = 11578158. Its totient is φ = 11578156.

The previous prime is 11578153. The next prime is 11578181. The reversal of 11578157 is 75187511.

11578157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9449476 + 2128681 = 3074^2 + 1459^2 .

It is a cyclic number.

It is not a de Polignac number, because 11578157 - 2² = 11578153 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11578153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5789078 + 5789079.

It is an arithmetic number, because the mean of its divisors is an integer number (5789079).

Almost surely, 2^11578157 is an apocalyptic number.

It is an amenable number.

11578157 is a deficient number, since it is larger than the sum of its proper divisors (1).

11578157 is an equidigital number, since it uses as much as digits as its factorization.

11578157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9800, while the sum is 35.

The square root of 11578157 is about 3402.6690993983. The cubic root of 11578157 is about 226.2280635610.

The spelling of 11578157 in words is "eleven million, five hundred seventy-eight thousand, one hundred fifty-seven".