36157261 has 4 divisors (see below), whose sum is σ = 41322592. Its totient is φ = 30991932.

The previous prime is 36157243. The next prime is 36157271. The reversal of 36157261 is 16275163.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16275163 = 89 ⋅182867.

It is a cyclic number.

It is not a de Polignac number, because 36157261 - 2¹⁵ = 36124493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36157211) 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, 2582655 + ... + 2582668.

It is an arithmetic number, because the mean of its divisors is an integer number (10330648).

Almost surely, 2^36157261 is an apocalyptic number.

It is an amenable number.

36157261 is a deficient number, since it is larger than the sum of its proper divisors (5165331).

36157261 is an equidigital number, since it uses as much as digits as its factorization.

36157261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5165330.

The product of its digits is 7560, while the sum is 31.

The square root of 36157261 is about 6013.0908025740. The cubic root of 36157261 is about 330.6728268333.

The spelling of 36157261 in words is "thirty-six million, one hundred fifty-seven thousand, two hundred sixty-one".