1066215031 has 8 divisors (see below), whose sum is σ = 1220138784. Its totient is φ = 912693120.

The previous prime is 1066215011. The next prime is 1066215037. The reversal of 1066215031 is 1305126601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1066215031 - 2²⁵ = 1032660599 is a prime.

It is a super-2 number, since 2×1066215031² = 2273628984660661922, 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 = 1066214987 and 1066215005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066215037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94750 + ... + 105403.

It is an arithmetic number, because the mean of its divisors is an integer number (152517348).

Almost surely, 2^1066215031 is an apocalyptic number.

1066215031 is a deficient number, since it is larger than the sum of its proper divisors (153923753).

1066215031 is an equidigital number, since it uses as much as digits as its factorization.

1066215031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200921.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1066215031 is about 32652.9482742370. The cubic root of 1066215031 is about 1021.6016842210.

The spelling of 1066215031 in words is "one billion, sixty-six million, two hundred fifteen thousand, thirty-one".