1059869057 has 4 divisors (see below), whose sum is σ = 1141397460. Its totient is φ = 978340656.

The previous prime is 1059869051. The next prime is 1059869071. The reversal of 1059869057 is 7509689501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 365230321 + 694638736 = 19111^2 + 26356^2 .

It is a cyclic number.

It is not a de Polignac number, because 1059869057 - 2¹² = 1059864961 is a prime.

It is a super-2 number, since 2×1059869057² = 2246644835972138498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1059868996 and 1059869014.

It is not an unprimeable number, because it can be changed into a prime (1059869051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40764182 + ... + 40764207.

It is an arithmetic number, because the mean of its divisors is an integer number (285349365).

Almost surely, 2^1059869057 is an apocalyptic number.

It is an amenable number.

1059869057 is a deficient number, since it is larger than the sum of its proper divisors (81528403).

1059869057 is an equidigital number, since it uses as much as digits as its factorization.

1059869057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81528402.

The product of its (nonzero) digits is 680400, while the sum is 50.

The square root of 1059869057 is about 32555.6301889550. The cubic root of 1059869057 is about 1019.5708360512.

The spelling of 1059869057 in words is "one billion, fifty-nine million, eight hundred sixty-nine thousand, fifty-seven".