20495341 has 2 divisors, whose sum is σ = 20495342. Its totient is φ = 20495340.

The previous prime is 20495339. The next prime is 20495347. The reversal of 20495341 is 14359402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20160100 + 335241 = 4490^2 + 579^2 .

It is a cyclic number.

It is not a de Polignac number, because 20495341 - 2¹ = 20495339 is a prime.

Together with 20495339, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20495347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10247670 + 10247671.

It is an arithmetic number, because the mean of its divisors is an integer number (10247671).

Almost surely, 2^20495341 is an apocalyptic number.

It is an amenable number.

20495341 is a deficient number, since it is larger than the sum of its proper divisors (1).

20495341 is an equidigital number, since it uses as much as digits as its factorization.

20495341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 20495341 is about 4527.1780393530. The cubic root of 20495341 is about 273.6644488476.

The spelling of 20495341 in words is "twenty million, four hundred ninety-five thousand, three hundred forty-one".