1046561215 has 32 divisors (see below), whose sum is σ = 1464773760. Its totient is φ = 703033344.

The previous prime is 1046561189. The next prime is 1046561231. The reversal of 1046561215 is 5121656401.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1046561215 is a prime.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 399831 + ... + 402439.

It is an arithmetic number, because the mean of its divisors is an integer number (45774180).

Almost surely, 2^1046561215 is an apocalyptic number.

1046561215 is a deficient number, since it is larger than the sum of its proper divisors (418212545).

1046561215 is a wasteful number, since it uses less digits than its factorization.

1046561215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 1046561215 is about 32350.5983715912. The cubic root of 1046561215 is about 1015.2855659891.

The spelling of 1046561215 in words is "one billion, forty-six million, five hundred sixty-one thousand, two hundred fifteen".