19070971 has 2 divisors, whose sum is σ = 19070972. Its totient is φ = 19070970.

The previous prime is 19070969. The next prime is 19070977. The reversal of 19070971 is 17907091.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19070971 - 2¹ = 19070969 is a prime.

Together with 19070969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (19070977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9535485 + 9535486.

It is an arithmetic number, because the mean of its divisors is an integer number (9535486).

Almost surely, 2^19070971 is an apocalyptic number.

19070971 is a deficient number, since it is larger than the sum of its proper divisors (1).

19070971 is an equidigital number, since it uses as much as digits as its factorization.

19070971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3969, while the sum is 34.

The square root of 19070971 is about 4367.0322874923. The cubic root of 19070971 is about 267.1719961434.

The spelling of 19070971 in words is "nineteen million, seventy thousand, nine hundred seventy-one".