69081081 has 16 divisors (see below), whose sum is σ = 98397504. Its totient is φ = 42957824.

The previous prime is 69081079. The next prime is 69081127. The reversal of 69081081 is 18018096.

It is a cyclic number.

It is not a de Polignac number, because 69081081 - 2¹ = 69081079 is a prime.

It is a super-2 number, since 2×69081081² = 9544391504257122, which contains 22 as substring.

69081081 is a modest number, since divided by 81081 gives 69 as remainder.

It is not an unprimeable number, because it can be changed into a prime (69081011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231 + ... + 11756.

It is an arithmetic number, because the mean of its divisors is an integer number (6149844).

Almost surely, 2^69081081 is an apocalyptic number.

It is an amenable number.

69081081 is a deficient number, since it is larger than the sum of its proper divisors (29316423).

69081081 is a wasteful number, since it uses less digits than its factorization.

69081081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12120.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 69081081 is about 8311.5029326831. The cubic root of 69081081 is about 410.3171866370.

The spelling of 69081081 in words is "sixty-nine million, eighty-one thousand, eighty-one".