69671131 has 2 divisors, whose sum is σ = 69671132. Its totient is φ = 69671130.

The previous prime is 69671087. The next prime is 69671141. The reversal of 69671131 is 13117696.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69671131 - 2⁷ = 69671003 is a prime.

It is a super-2 number, since 2×69671131² = 9708132989638322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (69671141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34835565 + 34835566.

It is an arithmetic number, because the mean of its divisors is an integer number (34835566).

Almost surely, 2^69671131 is an apocalyptic number.

69671131 is a deficient number, since it is larger than the sum of its proper divisors (1).

69671131 is an equidigital number, since it uses as much as digits as its factorization.

69671131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 34.

The square root of 69671131 is about 8346.9234451982. The cubic root of 69671131 is about 411.4821056527.

The spelling of 69671131 in words is "sixty-nine million, six hundred seventy-one thousand, one hundred thirty-one".