72202019 has 2 divisors, whose sum is σ = 72202020. Its totient is φ = 72202018.

The previous prime is 72202003. The next prime is 72202079. The reversal of 72202019 is 91020227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72202019 - 2⁴ = 72202003 is a prime.

It is a super-2 number, since 2×72202019² = 10426263095352722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72201985 and 72202003.

It is not a weakly prime, because it can be changed into another prime (72202079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36101009 + 36101010.

It is an arithmetic number, because the mean of its divisors is an integer number (36101010).

Almost surely, 2^72202019 is an apocalyptic number.

72202019 is a deficient number, since it is larger than the sum of its proper divisors (1).

72202019 is an equidigital number, since it uses as much as digits as its factorization.

72202019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 72202019 is about 8497.1771194909. The cubic root of 72202019 is about 416.4054905809.

The spelling of 72202019 in words is "seventy-two million, two hundred two thousand, nineteen".