69249461 has 2 divisors, whose sum is σ = 69249462. Its totient is φ = 69249460.

The previous prime is 69249431. The next prime is 69249463. The reversal of 69249461 is 16494296.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60062500 + 9186961 = 7750^2 + 3031^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69249461 is a prime.

Together with 69249463, 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 (69249463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34624730 + 34624731.

It is an arithmetic number, because the mean of its divisors is an integer number (34624731).

Almost surely, 2^69249461 is an apocalyptic number.

It is an amenable number.

69249461 is a deficient number, since it is larger than the sum of its proper divisors (1).

69249461 is an equidigital number, since it uses as much as digits as its factorization.

69249461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 41.

The square root of 69249461 is about 8321.6261031123. The cubic root of 69249461 is about 410.6502886938.

The spelling of 69249461 in words is "sixty-nine million, two hundred forty-nine thousand, four hundred sixty-one".