36381157 has 2 divisors, whose sum is σ = 36381158. Its totient is φ = 36381156.

The previous prime is 36381131. The next prime is 36381187. The reversal of 36381157 is 75118363.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21986721 + 14394436 = 4689^2 + 3794^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36381157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36381187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18190578 + 18190579.

It is an arithmetic number, because the mean of its divisors is an integer number (18190579).

Almost surely, 2^36381157 is an apocalyptic number.

It is an amenable number.

36381157 is a deficient number, since it is larger than the sum of its proper divisors (1).

36381157 is an equidigital number, since it uses as much as digits as its factorization.

36381157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 36381157 is about 6031.6794510319. The cubic root of 36381157 is about 331.3539627636.

The spelling of 36381157 in words is "thirty-six million, three hundred eighty-one thousand, one hundred fifty-seven".