1061653215 has 64 divisors (see below), whose sum is σ = 2049868800. Its totient is φ = 458348544.

The previous prime is 1061653207. The next prime is 1061653231. The reversal of 1061653215 is 5123561601.

It is not a de Polignac number, because 1061653215 - 2³ = 1061653207 is a prime.

It is a super-2 number, since 2×1061653215² = 2254215097839672450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 863221 + ... + 864449.

It is an arithmetic number, because the mean of its divisors is an integer number (32029200).

Almost surely, 2^1061653215 is an apocalyptic number.

1061653215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1061653215 is a deficient number, since it is larger than the sum of its proper divisors (988215585).

1061653215 is a wasteful number, since it uses less digits than its factorization.

1061653215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1061653215 is about 32583.0203480279. The cubic root of 1061653215 is about 1020.1426223098.

The spelling of 1061653215 in words is "one billion, sixty-one million, six hundred fifty-three thousand, two hundred fifteen".