1146131477 has 2 divisors, whose sum is σ = 1146131478. Its totient is φ = 1146131476.

The previous prime is 1146131461. The next prime is 1146131513. The reversal of 1146131477 is 7741316411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 890962801 + 255168676 = 29849^2 + 15974^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146131477 - 2⁴ = 1146131461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1146131407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573065738 + 573065739.

It is an arithmetic number, because the mean of its divisors is an integer number (573065739).

Almost surely, 2^1146131477 is an apocalyptic number.

It is an amenable number.

1146131477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146131477 is an equidigital number, since it uses as much as digits as its factorization.

1146131477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 35.

The square root of 1146131477 is about 33854.5636066986. The cubic root of 1146131477 is about 1046.5134475682.

Adding to 1146131477 its reverse (7741316411), we get a palindrome (8887447888).

The spelling of 1146131477 in words is "one billion, one hundred forty-six million, one hundred thirty-one thousand, four hundred seventy-seven".