137512447 has 2 divisors, whose sum is σ = 137512448. Its totient is φ = 137512446.

The previous prime is 137512433. The next prime is 137512471. The reversal of 137512447 is 744215731.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137512447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137512477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68756223 + 68756224.

It is an arithmetic number, because the mean of its divisors is an integer number (68756224).

Almost surely, 2^137512447 is an apocalyptic number.

137512447 is a deficient number, since it is larger than the sum of its proper divisors (1).

137512447 is an equidigital number, since it uses as much as digits as its factorization.

137512447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520, while the sum is 34.

The square root of 137512447 is about 11726.5701294112. The cubic root of 137512447 is about 516.1556315499.

The spelling of 137512447 in words is "one hundred thirty-seven million, five hundred twelve thousand, four hundred forty-seven".