1061645315 has 4 divisors (see below), whose sum is σ = 1273974384. Its totient is φ = 849316248.

The previous prime is 1061645297. The next prime is 1061645323. The reversal of 1061645315 is 5135461601.

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

It is a cyclic number.

It is not a de Polignac number, because 1061645315 - 2¹⁰ = 1061644291 is a prime.

It is a super-2 number, since 2×1061645315² = 2254181549722898450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106164527 + ... + 106164536.

It is an arithmetic number, because the mean of its divisors is an integer number (318493596).

Almost surely, 2^1061645315 is an apocalyptic number.

1061645315 is a deficient number, since it is larger than the sum of its proper divisors (212329069).

1061645315 is an equidigital number, since it uses as much as digits as its factorization.

1061645315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212329068.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 1061645315 is about 32582.8991190164. The cubic root of 1061645315 is about 1020.1400919334.

The spelling of 1061645315 in words is "one billion, sixty-one million, six hundred forty-five thousand, three hundred fifteen".