1085622929 has 2 divisors, whose sum is σ = 1085622930. Its totient is φ = 1085622928.

The previous prime is 1085622919. The next prime is 1085622947. The reversal of 1085622929 is 9292265801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 688537600 + 397085329 = 26240^2 + 19927^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1085622929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1085622929.

It is not a weakly prime, because it can be changed into another prime (1085622919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542811464 + 542811465.

It is an arithmetic number, because the mean of its divisors is an integer number (542811465).

Almost surely, 2^1085622929 is an apocalyptic number.

It is an amenable number.

1085622929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085622929 is an equidigital number, since it uses as much as digits as its factorization.

1085622929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1085622929 is about 32948.7925271929. The cubic root of 1085622929 is about 1027.7630559224.

The spelling of 1085622929 in words is "one billion, eighty-five million, six hundred twenty-two thousand, nine hundred twenty-nine".