19752071 has 2 divisors, whose sum is σ = 19752072. Its totient is φ = 19752070.

The previous prime is 19752059. The next prime is 19752107. The reversal of 19752071 is 17025791.

Together with next prime (19752107) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (17025791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19752071 - 2¹⁰ = 19751047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19758071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9876035 + 9876036.

It is an arithmetic number, because the mean of its divisors is an integer number (9876036).

Almost surely, 2^19752071 is an apocalyptic number.

19752071 is a deficient number, since it is larger than the sum of its proper divisors (1).

19752071 is an equidigital number, since it uses as much as digits as its factorization.

19752071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 19752071 is about 4444.3302082541. The cubic root of 19752071 is about 270.3154566217.

The spelling of 19752071 in words is "nineteen million, seven hundred fifty-two thousand, seventy-one".