19745097 has 8 divisors (see below), whose sum is σ = 26823744. Its totient is φ = 12914928.

The previous prime is 19745083. The next prime is 19745111. The reversal of 19745097 is 79054791.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19745083) and next prime (19745111).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19745097 - 2²⁰ = 18696521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19745797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61933 + ... + 62250.

It is an arithmetic number, because the mean of its divisors is an integer number (3352968).

Almost surely, 2^19745097 is an apocalyptic number.

It is an amenable number.

19745097 is a deficient number, since it is larger than the sum of its proper divisors (7078647).

19745097 is a wasteful number, since it uses less digits than its factorization.

19745097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124239.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 19745097 is about 4443.5455438197. The cubic root of 19745097 is about 270.2836388289.

The spelling of 19745097 in words is "nineteen million, seven hundred forty-five thousand, ninety-seven".