1136640245 has 16 divisors (see below), whose sum is σ = 1500145920. Its totient is φ = 821504064.

The previous prime is 1136640209. The next prime is 1136640257. The reversal of 1136640245 is 5420466311.

It is a cyclic number.

It is not a de Polignac number, because 1136640245 - 2⁸ = 1136639989 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182975 + ... + 189084.

It is an arithmetic number, because the mean of its divisors is an integer number (93759120).

Almost surely, 2^1136640245 is an apocalyptic number.

It is an amenable number.

1136640245 is a deficient number, since it is larger than the sum of its proper divisors (363505675).

1136640245 is a wasteful number, since it uses less digits than its factorization.

1136640245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372124.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1136640245 is about 33714.0956426240. The cubic root of 1136640245 is about 1043.6166749994.

The spelling of 1136640245 in words is "one billion, one hundred thirty-six million, six hundred forty thousand, two hundred forty-five".