19972195 has 8 divisors (see below), whose sum is σ = 25376544. Its totient is φ = 15037824.

The previous prime is 19972181. The next prime is 19972201. The reversal of 19972195 is 59127991.

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

It is a cyclic number.

It is not a de Polignac number, because 19972195 - 2⁷ = 19972067 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117399 + ... + 117568.

It is an arithmetic number, because the mean of its divisors is an integer number (3172068).

Almost surely, 2^19972195 is an apocalyptic number.

19972195 is a deficient number, since it is larger than the sum of its proper divisors (5404349).

19972195 is a wasteful number, since it uses less digits than its factorization.

19972195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234989.

The product of its digits is 51030, while the sum is 43.

The square root of 19972195 is about 4469.0261802769. The cubic root of 19972195 is about 271.3159126846.

The spelling of 19972195 in words is "nineteen million, nine hundred seventy-two thousand, one hundred ninety-five".