146120479891 has 4 divisors (see below), whose sum is σ = 146128688800. Its totient is φ = 146112270984.

The previous prime is 146120479867. The next prime is 146120479903. The reversal of 146120479891 is 198974021641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 198974021641 = 4799 ⋅41461559.

It is a cyclic number.

It is not a de Polignac number, because 146120479891 - 2¹³ = 146120471699 is a prime.

It is a super-2 number, since 2×146120479891² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146120479591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4077696 + ... + 4113373.

It is an arithmetic number, because the mean of its divisors is an integer number (36532172200).

Almost surely, 2^146120479891 is an apocalyptic number.

146120479891 is a deficient number, since it is larger than the sum of its proper divisors (8208909).

146120479891 is an equidigital number, since it uses as much as digits as its factorization.

146120479891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8208908.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 146120479891 in words is "one hundred forty-six billion, one hundred twenty million, four hundred seventy-nine thousand, eight hundred ninety-one".