146253421291 has 8 divisors (see below), whose sum is σ = 154377434000. Its totient is φ = 138555866304.

The previous prime is 146253421283. The next prime is 146253421357. The reversal of 146253421291 is 192124352641.

It is not a de Polignac number, because 146253421291 - 2³ = 146253421283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146253401291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10654566 + ... + 10668283.

It is an arithmetic number, because the mean of its divisors is an integer number (19297179250).

Almost surely, 2^146253421291 is an apocalyptic number.

146253421291 is a deficient number, since it is larger than the sum of its proper divisors (8124012709).

146253421291 is an frugal number, since it uses more digits than its factorization.

146253421291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21322906 (or 21322868 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The spelling of 146253421291 in words is "one hundred forty-six billion, two hundred fifty-three million, four hundred twenty-one thousand, two hundred ninety-one".