1081292357 has 2 divisors, whose sum is σ = 1081292358. Its totient is φ = 1081292356.

The previous prime is 1081292341. The next prime is 1081292419. The reversal of 1081292357 is 7532921801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 959388676 + 121903681 = 30974^2 + 11041^2 .

It is a cyclic number.

It is not a de Polignac number, because 1081292357 - 2⁴ = 1081292341 is a prime.

It is a super-2 number, since 2×1081292357² = 2338386322613230898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1081292357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1081291357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540646178 + 540646179.

It is an arithmetic number, because the mean of its divisors is an integer number (540646179).

Almost surely, 2^1081292357 is an apocalyptic number.

It is an amenable number.

1081292357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081292357 is an equidigital number, since it uses as much as digits as its factorization.

1081292357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1081292357 is about 32883.0101572225. The cubic root of 1081292357 is about 1026.3946455051.

The spelling of 1081292357 in words is "one billion, eighty-one million, two hundred ninety-two thousand, three hundred fifty-seven".