11634157 has 2 divisors, whose sum is σ = 11634158. Its totient is φ = 11634156.

The previous prime is 11634149. The next prime is 11634167. The reversal of 11634157 is 75143611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11519236 + 114921 = 3394^2 + 339^2 .

It is a cyclic number.

It is not a de Polignac number, because 11634157 - 2³ = 11634149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11634107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5817078 + 5817079.

It is an arithmetic number, because the mean of its divisors is an integer number (5817079).

Almost surely, 2^11634157 is an apocalyptic number.

It is an amenable number.

11634157 is a deficient number, since it is larger than the sum of its proper divisors (1).

11634157 is an equidigital number, since it uses as much as digits as its factorization.

11634157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 28.

The square root of 11634157 is about 3410.8880075429. Note that the first 3 decimals coincide. The cubic root of 11634157 is about 226.5922090601.

Adding to 11634157 its reverse (75143611), we get a palindrome (86777768).

The spelling of 11634157 in words is "eleven million, six hundred thirty-four thousand, one hundred fifty-seven".