36142397 has 4 divisors (see below), whose sum is σ = 36755040. Its totient is φ = 35529756.

The previous prime is 36142369. The next prime is 36142409. The reversal of 36142397 is 79324163.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36142397 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 (36142097) 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, 306233 + ... + 306350.

It is an arithmetic number, because the mean of its divisors is an integer number (9188760).

Almost surely, 2^36142397 is an apocalyptic number.

It is an amenable number.

36142397 is a deficient number, since it is larger than the sum of its proper divisors (612643).

36142397 is an equidigital number, since it uses as much as digits as its factorization.

36142397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612642.

The product of its digits is 27216, while the sum is 35.

The square root of 36142397 is about 6011.8547054965. The cubic root of 36142397 is about 330.6275081850.

The spelling of 36142397 in words is "thirty-six million, one hundred forty-two thousand, three hundred ninety-seven".