137965447 has 2 divisors, whose sum is σ = 137965448. Its totient is φ = 137965446.

The previous prime is 137965427. The next prime is 137965559. The reversal of 137965447 is 744569731.

137965447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137965447 - 2²⁷ = 3747719 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 137965397 and 137965406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137965427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68982723 + 68982724.

It is an arithmetic number, because the mean of its divisors is an integer number (68982724).

Almost surely, 2^137965447 is an apocalyptic number.

137965447 is a deficient number, since it is larger than the sum of its proper divisors (1).

137965447 is an equidigital number, since it uses as much as digits as its factorization.

137965447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 46.

The square root of 137965447 is about 11745.8693590555. The cubic root of 137965447 is about 516.7217917365.

The spelling of 137965447 in words is "one hundred thirty-seven million, nine hundred sixty-five thousand, four hundred forty-seven".