69265981 has 2 divisors, whose sum is σ = 69265982. Its totient is φ = 69265980.

The previous prime is 69265979. The next prime is 69266003. The reversal of 69265981 is 18956296.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67980025 + 1285956 = 8245^2 + 1134^2 .

It is a cyclic number.

It is not a de Polignac number, because 69265981 - 2¹ = 69265979 is a prime.

It is a super-2 number, since 2×69265981² = 9595552247784722, which contains 22 as substring.

Together with 69265979, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69275981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34632990 + 34632991.

It is an arithmetic number, because the mean of its divisors is an integer number (34632991).

Almost surely, 2^69265981 is an apocalyptic number.

It is an amenable number.

69265981 is a deficient number, since it is larger than the sum of its proper divisors (1).

69265981 is an equidigital number, since it uses as much as digits as its factorization.

69265981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 46.

The square root of 69265981 is about 8322.6186383854. The cubic root of 69265981 is about 410.6829407091.

The spelling of 69265981 in words is "sixty-nine million, two hundred sixty-five thousand, nine hundred eighty-one".