1140871597 has 2 divisors, whose sum is σ = 1140871598. Its totient is φ = 1140871596.

The previous prime is 1140871559. The next prime is 1140871609. The reversal of 1140871597 is 7951780411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 798288516 + 342583081 = 28254^2 + 18509^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140871597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140872597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570435798 + 570435799.

It is an arithmetic number, because the mean of its divisors is an integer number (570435799).

Almost surely, 2^1140871597 is an apocalyptic number.

It is an amenable number.

1140871597 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140871597 is an equidigital number, since it uses as much as digits as its factorization.

1140871597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 43.

The square root of 1140871597 is about 33776.7908037457. The cubic root of 1140871597 is about 1044.9100895608.

The spelling of 1140871597 in words is "one billion, one hundred forty million, eight hundred seventy-one thousand, five hundred ninety-seven".