137671673 has 2 divisors, whose sum is σ = 137671674. Its totient is φ = 137671672.

The previous prime is 137671643. The next prime is 137671733. The reversal of 137671673 is 376176731.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118548544 + 19123129 = 10888^2 + 4373^2 .

It is a cyclic number.

It is not a de Polignac number, because 137671673 - 2¹² = 137667577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137671673.

It is not a weakly prime, because it can be changed into another prime (137671643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68835836 + 68835837.

It is an arithmetic number, because the mean of its divisors is an integer number (68835837).

Almost surely, 2^137671673 is an apocalyptic number.

It is an amenable number.

137671673 is a deficient number, since it is larger than the sum of its proper divisors (1).

137671673 is an equidigital number, since it uses as much as digits as its factorization.

137671673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 111132, while the sum is 41.

The square root of 137671673 is about 11733.3572774377. The cubic root of 137671673 is about 516.3547739982.

The spelling of 137671673 in words is "one hundred thirty-seven million, six hundred seventy-one thousand, six hundred seventy-three".