137143723 has 2 divisors, whose sum is σ = 137143724. Its totient is φ = 137143722.

The previous prime is 137143673. The next prime is 137143751. The reversal of 137143723 is 327341731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137143723 - 2¹⁷ = 137012651 is a prime.

It is not a weakly prime, because it can be changed into another prime (137143753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68571861 + 68571862.

It is an arithmetic number, because the mean of its divisors is an integer number (68571862).

Almost surely, 2^137143723 is an apocalyptic number.

137143723 is a deficient number, since it is larger than the sum of its proper divisors (1).

137143723 is an equidigital number, since it uses as much as digits as its factorization.

137143723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 31.

The square root of 137143723 is about 11710.8378436387. The cubic root of 137143723 is about 515.6938810361.

The spelling of 137143723 in words is "one hundred thirty-seven million, one hundred forty-three thousand, seven hundred twenty-three".