1140646537 has 2 divisors, whose sum is σ = 1140646538. Its totient is φ = 1140646536.

The previous prime is 1140646483. The next prime is 1140646541. The reversal of 1140646537 is 7356460411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 963729936 + 176916601 = 31044^2 + 13301^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140646537 - 2¹¹ = 1140644489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1140646496 and 1140646505.

It is not a weakly prime, because it can be changed into another prime (1140646547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570323268 + 570323269.

It is an arithmetic number, because the mean of its divisors is an integer number (570323269).

Almost surely, 2^1140646537 is an apocalyptic number.

It is an amenable number.

1140646537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140646537 is an equidigital number, since it uses as much as digits as its factorization.

1140646537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 1140646537 is about 33773.4590618136. The cubic root of 1140646537 is about 1044.8413751583.

The spelling of 1140646537 in words is "one billion, one hundred forty million, six hundred forty-six thousand, five hundred thirty-seven".