1137505745 has 4 divisors (see below), whose sum is σ = 1365006900. Its totient is φ = 910004592.

The previous prime is 1137505741. The next prime is 1137505823. The reversal of 1137505745 is 5475057311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147962896 + 989542849 = 12164^2 + 31457^2 .

It is a cyclic number.

It is not a de Polignac number, because 1137505745 - 2² = 1137505741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1137505699 and 1137505708.

It is not an unprimeable number, because it can be changed into a prime (1137505741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113750570 + ... + 113750579.

It is an arithmetic number, because the mean of its divisors is an integer number (341251725).

Almost surely, 2^1137505745 is an apocalyptic number.

It is an amenable number.

1137505745 is a deficient number, since it is larger than the sum of its proper divisors (227501155).

1137505745 is an equidigital number, since it uses as much as digits as its factorization.

1137505745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227501154.

The product of its (nonzero) digits is 73500, while the sum is 38.

The square root of 1137505745 is about 33726.9290775191. The cubic root of 1137505745 is about 1043.8814967175.

The spelling of 1137505745 in words is "one billion, one hundred thirty-seven million, five hundred five thousand, seven hundred forty-five".