69275081 has 4 divisors (see below), whose sum is σ = 70582212. Its totient is φ = 67967952.

The previous prime is 69275069. The next prime is 69275099. The reversal of 69275081 is 18057296.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19219456 + 50055625 = 4384^2 + 7075^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69275081 is a prime.

It is a super-2 number, since 2×69275081² = 9598073695113122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69275981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653486 + ... + 653591.

It is an arithmetic number, because the mean of its divisors is an integer number (17645553).

Almost surely, 2^69275081 is an apocalyptic number.

It is an amenable number.

69275081 is a deficient number, since it is larger than the sum of its proper divisors (1307131).

69275081 is a wasteful number, since it uses less digits than its factorization.

69275081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307130.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 69275081 is about 8323.1653233611. The cubic root of 69275081 is about 410.7009247712.

The spelling of 69275081 in words is "sixty-nine million, two hundred seventy-five thousand, eighty-one".