1135726745 has 4 divisors (see below), whose sum is σ = 1362872100. Its totient is φ = 908581392.

The previous prime is 1135726717. The next prime is 1135726751. The reversal of 1135726745 is 5476275311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5476275311 = 13 ⋅421251947.

It can be written as a sum of positive squares in 2 ways, for example, as 665227264 + 470499481 = 25792^2 + 21691^2 .

It is a cyclic number.

It is not a de Polignac number, because 1135726745 - 2¹⁴ = 1135710361 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113572670 + ... + 113572679.

It is an arithmetic number, because the mean of its divisors is an integer number (340718025).

Almost surely, 2^1135726745 is an apocalyptic number.

It is an amenable number.

1135726745 is a deficient number, since it is larger than the sum of its proper divisors (227145355).

1135726745 is an equidigital number, since it uses as much as digits as its factorization.

1135726745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227145354.

The product of its digits is 176400, while the sum is 41.

The square root of 1135726745 is about 33700.5451736318. The cubic root of 1135726745 is about 1043.3370205978.

The spelling of 1135726745 in words is "one billion, one hundred thirty-five million, seven hundred twenty-six thousand, seven hundred forty-five".