1125667537 has 2 divisors, whose sum is σ = 1125667538. Its totient is φ = 1125667536.

The previous prime is 1125667513. The next prime is 1125667547. The reversal of 1125667537 is 7357665211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 653518096 + 472149441 = 25564^2 + 21729^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125667537 - 2⁷ = 1125667409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1125667493 and 1125667502.

It is not a weakly prime, because it can be changed into another prime (1125667507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562833768 + 562833769.

It is an arithmetic number, because the mean of its divisors is an integer number (562833769).

Almost surely, 2^1125667537 is an apocalyptic number.

It is an amenable number.

1125667537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125667537 is an equidigital number, since it uses as much as digits as its factorization.

1125667537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264600, while the sum is 43.

The square root of 1125667537 is about 33550.9692408431. The cubic root of 1125667537 is about 1040.2475794325.

The spelling of 1125667537 in words is "one billion, one hundred twenty-five million, six hundred sixty-seven thousand, five hundred thirty-seven".