141721273 has 2 divisors, whose sum is σ = 141721274. Its totient is φ = 141721272.

The previous prime is 141721271. The next prime is 141721277. The reversal of 141721273 is 372127141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140493609 + 1227664 = 11853^2 + 1108^2 .

It is a cyclic number.

It is not a de Polignac number, because 141721273 - 2¹ = 141721271 is a prime.

Together with 141721271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (141721271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70860636 + 70860637.

It is an arithmetic number, because the mean of its divisors is an integer number (70860637).

Almost surely, 2^141721273 is an apocalyptic number.

It is an amenable number.

141721273 is a deficient number, since it is larger than the sum of its proper divisors (1).

141721273 is an equidigital number, since it uses as much as digits as its factorization.

141721273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 28.

The square root of 141721273 is about 11904.6744180595. The cubic root of 141721273 is about 521.3687718427.

The spelling of 141721273 in words is "one hundred forty-one million, seven hundred twenty-one thousand, two hundred seventy-three".