1061386465 has 4 divisors (see below), whose sum is σ = 1273663764. Its totient is φ = 849109168.

The previous prime is 1061386429. The next prime is 1061386481. The reversal of 1061386465 is 5646831601.

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 672468624 + 388917841 = 25932^2 + 19721^2 .

It is a cyclic number.

It is not a de Polignac number, because 1061386465 - 2¹⁵ = 1061353697 is a prime.

It is a super-2 number, since 2×1061386465² = 2253082456170392450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106138642 + ... + 106138651.

It is an arithmetic number, because the mean of its divisors is an integer number (318415941).

Almost surely, 2^1061386465 is an apocalyptic number.

It is an amenable number.

1061386465 is a deficient number, since it is larger than the sum of its proper divisors (212277299).

1061386465 is an equidigital number, since it uses as much as digits as its factorization.

1061386465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212277298.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 1061386465 is about 32578.9267011668. The cubic root of 1061386465 is about 1020.0571751239.

The spelling of 1061386465 in words is "one billion, sixty-one million, three hundred eighty-six thousand, four hundred sixty-five".