137482409 has 2 divisors, whose sum is σ = 137482410. Its totient is φ = 137482408.

The previous prime is 137482391. The next prime is 137482447. The reversal of 137482409 is 904284731.

It is an a-pointer prime, because the next prime (137482447) can be obtained adding 137482409 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135792409 + 1690000 = 11653^2 + 1300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137482409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (137482469) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68741204 + 68741205.

It is an arithmetic number, because the mean of its divisors is an integer number (68741205).

Almost surely, 2^137482409 is an apocalyptic number.

It is an amenable number.

137482409 is a deficient number, since it is larger than the sum of its proper divisors (1).

137482409 is an equidigital number, since it uses as much as digits as its factorization.

137482409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 137482409 is about 11725.2892928064. The cubic root of 137482409 is about 516.1180460749.

The spelling of 137482409 in words is "one hundred thirty-seven million, four hundred eighty-two thousand, four hundred nine".