137323447 has 2 divisors, whose sum is σ = 137323448. Its totient is φ = 137323446.

The previous prime is 137323441. The next prime is 137323471. The reversal of 137323447 is 744323731.

It is a weak prime.

It is an emirp because it is prime and its reverse (744323731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137323447 - 2²⁷ = 3105719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137323441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68661723 + 68661724.

It is an arithmetic number, because the mean of its divisors is an integer number (68661724).

Almost surely, 2^137323447 is an apocalyptic number.

137323447 is a deficient number, since it is larger than the sum of its proper divisors (1).

137323447 is an equidigital number, since it uses as much as digits as its factorization.

137323447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 34.

The square root of 137323447 is about 11718.5087361831. The cubic root of 137323447 is about 515.9190514104.

The spelling of 137323447 in words is "one hundred thirty-seven million, three hundred twenty-three thousand, four hundred forty-seven".