146456624921 has 2 divisors, whose sum is σ = 146456624922. Its totient is φ = 146456624920.

The previous prime is 146456624849. The next prime is 146456624929. The reversal of 146456624921 is 129426654641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143746381321 + 2710243600 = 379139^2 + 52060^2 .

It is a cyclic number.

It is not a de Polignac number, because 146456624921 - 2²⁶ = 146389516057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 146456624921.

It is not a weakly prime, because it can be changed into another prime (146456624929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73228312460 + 73228312461.

It is an arithmetic number, because the mean of its divisors is an integer number (73228312461).

Almost surely, 2^146456624921 is an apocalyptic number.

It is an amenable number.

146456624921 is a deficient number, since it is larger than the sum of its proper divisors (1).

146456624921 is an equidigital number, since it uses as much as digits as its factorization.

146456624921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 50.

The spelling of 146456624921 in words is "one hundred forty-six billion, four hundred fifty-six million, six hundred twenty-four thousand, nine hundred twenty-one".