121837273 has 2 divisors, whose sum is σ = 121837274. Its totient is φ = 121837272.

The previous prime is 121837267. The next prime is 121837297. The reversal of 121837273 is 372738121.

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., 121815369 + 21904 = 11037^2 + 148^2 .

It is a cyclic number.

It is not a de Polignac number, because 121837273 - 2¹⁷ = 121706201 is a prime.

It is not a weakly prime, because it can be changed into another prime (121837873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60918636 + 60918637.

It is an arithmetic number, because the mean of its divisors is an integer number (60918637).

Almost surely, 2^121837273 is an apocalyptic number.

It is an amenable number.

121837273 is a deficient number, since it is larger than the sum of its proper divisors (1).

121837273 is an equidigital number, since it uses as much as digits as its factorization.

121837273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 34.

The square root of 121837273 is about 11037.9922540288. The cubic root of 121837273 is about 495.7469564826.

The spelling of 121837273 in words is "one hundred twenty-one million, eight hundred thirty-seven thousand, two hundred seventy-three".