2136442745 has 32 divisors (see below), whose sum is σ = 2881612800. Its totient is φ = 1512713664.

The previous prime is 2136442723. The next prime is 2136442757. The reversal of 2136442745 is 5472446312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2136442745 - 2⁶ = 2136442681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2136442699 and 2136442708.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82586 + ... + 105324.

It is an arithmetic number, because the mean of its divisors is an integer number (90050400).

Almost surely, 2^2136442745 is an apocalyptic number.

It is an amenable number.

2136442745 is a deficient number, since it is larger than the sum of its proper divisors (745170055).

2136442745 is a wasteful number, since it uses less digits than its factorization.

2136442745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22829.

The product of its digits is 161280, while the sum is 38.

The square root of 2136442745 is about 46221.6696474716. The cubic root of 2136442745 is about 1287.9443141778.

The spelling of 2136442745 in words is "two billion, one hundred thirty-six million, four hundred forty-two thousand, seven hundred forty-five".