137294273 has 2 divisors, whose sum is σ = 137294274. Its totient is φ = 137294272.

The previous prime is 137294263. The next prime is 137294317. The reversal of 137294273 is 372492731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111365809 + 25928464 = 10553^2 + 5092^2 .

It is a cyclic number.

It is not a de Polignac number, because 137294273 - 2¹⁶ = 137228737 is a prime.

It is not a weakly prime, because it can be changed into another prime (137294263) 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, 68647136 + 68647137.

It is an arithmetic number, because the mean of its divisors is an integer number (68647137).

Almost surely, 2^137294273 is an apocalyptic number.

It is an amenable number.

137294273 is a deficient number, since it is larger than the sum of its proper divisors (1).

137294273 is an equidigital number, since it uses as much as digits as its factorization.

137294273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 38.

The square root of 137294273 is about 11717.2638871027. The cubic root of 137294273 is about 515.8825136141.

The spelling of 137294273 in words is "one hundred thirty-seven million, two hundred ninety-four thousand, two hundred seventy-three".