1081178653 has 2 divisors, whose sum is σ = 1081178654. Its totient is φ = 1081178652.

The previous prime is 1081178633. The next prime is 1081178663. The reversal of 1081178653 is 3568711801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 840246169 + 240932484 = 28987^2 + 15522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1081178653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1081178633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540589326 + 540589327.

It is an arithmetic number, because the mean of its divisors is an integer number (540589327).

Almost surely, 2^1081178653 is an apocalyptic number.

It is an amenable number.

1081178653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081178653 is an equidigital number, since it uses as much as digits as its factorization.

1081178653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 1081178653 is about 32881.2811946250. The cubic root of 1081178653 is about 1026.3586671788.

The spelling of 1081178653 in words is "one billion, eighty-one million, one hundred seventy-eight thousand, six hundred fifty-three".