10218069 has 20 divisors (see below), whose sum is σ = 15427500. Its totient is φ = 6739200.

The previous prime is 10218059. The next prime is 10218073. The reversal of 10218069 is 96081201.

It can be written as a sum of positive squares in 2 ways, for example, as 7535025 + 2683044 = 2745^2 + 1638^2 .

It is not a de Polignac number, because 10218069 - 2¹¹ = 10216021 is a prime.

It is a super-2 number, since 2×10218069² = 208817868177522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10218059) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7557 + ... + 8805.

It is an arithmetic number, because the mean of its divisors is an integer number (771375).

Almost surely, 2^10218069 is an apocalyptic number.

It is an amenable number.

10218069 is a deficient number, since it is larger than the sum of its proper divisors (5209431).

10218069 is a wasteful number, since it uses less digits than its factorization.

10218069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362 (or 1353 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 10218069 is about 3196.5714445324. The cubic root of 10218069 is about 216.9982727605.

The spelling of 10218069 in words is "ten million, two hundred eighteen thousand, sixty-nine".