69132881 has 2 divisors, whose sum is σ = 69132882. Its totient is φ = 69132880.

The previous prime is 69132859. The next prime is 69132893. The reversal of 69132881 is 18823196.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45697600 + 23435281 = 6760^2 + 4841^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69132881 is a prime.

It is a super-2 number, since 2×69132881² = 9558710470720322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (69132841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34566440 + 34566441.

It is an arithmetic number, because the mean of its divisors is an integer number (34566441).

Almost surely, 2^69132881 is an apocalyptic number.

It is an amenable number.

69132881 is a deficient number, since it is larger than the sum of its proper divisors (1).

69132881 is an equidigital number, since it uses as much as digits as its factorization.

69132881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 38.

The square root of 69132881 is about 8314.6185119944. The cubic root of 69132881 is about 410.4197189062.

The spelling of 69132881 in words is "sixty-nine million, one hundred thirty-two thousand, eight hundred eighty-one".