146219195987 has 2 divisors, whose sum is σ = 146219195988. Its totient is φ = 146219195986.

The previous prime is 146219195977. The next prime is 146219196037. The reversal of 146219195987 is 789591912641.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 146219195987 - 2⁶ = 146219195923 is a prime.

It is not a weakly prime, because it can be changed into another prime (146219195977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73109597993 + 73109597994.

It is an arithmetic number, because the mean of its divisors is an integer number (73109597994).

Almost surely, 2^146219195987 is an apocalyptic number.

146219195987 is a deficient number, since it is larger than the sum of its proper divisors (1).

146219195987 is an equidigital number, since it uses as much as digits as its factorization.

146219195987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 62.

The spelling of 146219195987 in words is "one hundred forty-six billion, two hundred nineteen million, one hundred ninety-five thousand, nine hundred eighty-seven".