1061899841 has 2 divisors, whose sum is σ = 1061899842. Its totient is φ = 1061899840.

The previous prime is 1061899819. The next prime is 1061899847. The reversal of 1061899841 is 1489981601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 825355441 + 236544400 = 28729^2 + 15380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1061899841 is a prime.

It is a super-2 number, since 2×1061899841² = 2255262544631650562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1061899847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530949920 + 530949921.

It is an arithmetic number, because the mean of its divisors is an integer number (530949921).

Almost surely, 2^1061899841 is an apocalyptic number.

It is an amenable number.

1061899841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061899841 is an equidigital number, since it uses as much as digits as its factorization.

1061899841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 47.

The square root of 1061899841 is about 32586.8047068135. The cubic root of 1061899841 is about 1020.2216105052.

The spelling of 1061899841 in words is "one billion, sixty-one million, eight hundred ninety-nine thousand, eight hundred forty-one".