1140423677 has 2 divisors, whose sum is σ = 1140423678. Its totient is φ = 1140423676.

The previous prime is 1140423659. The next prime is 1140423679. The reversal of 1140423677 is 7763240411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 790396996 + 350026681 = 28114^2 + 18709^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140423677 - 2¹⁰ = 1140422653 is a prime.

Together with 1140423679, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140423679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570211838 + 570211839.

It is an arithmetic number, because the mean of its divisors is an integer number (570211839).

Almost surely, 2^1140423677 is an apocalyptic number.

It is an amenable number.

1140423677 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140423677 is an equidigital number, since it uses as much as digits as its factorization.

1140423677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 1140423677 is about 33770.1595643254. The cubic root of 1140423677 is about 1044.7733235437.

The spelling of 1140423677 in words is "one billion, one hundred forty million, four hundred twenty-three thousand, six hundred seventy-seven".