146220332140 has 12 divisors (see below), whose sum is σ = 307062697536. Its totient is φ = 58488132848.

The previous prime is 146220332131. The next prime is 146220332143. The reversal of 146220332140 is 41233022641.

It is a happy number.

It is a super-2 number, since 2×146220332140² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 146220332099 and 146220332108.

It is not an unprimeable number, because it can be changed into a prime (146220332143) 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, 3655508284 + ... + 3655508323.

It is an arithmetic number, because the mean of its divisors is an integer number (25588558128).

Almost surely, 2^146220332140 is an apocalyptic number.

146220332140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146220332140 is an abundant number, since it is smaller than the sum of its proper divisors (160842365396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146220332140 is a wasteful number, since it uses less digits than its factorization.

146220332140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7311016616 (or 7311016614 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 146220332140 its reverse (41233022641), we get a palindrome (187453354781).

The spelling of 146220332140 in words is "one hundred forty-six billion, two hundred twenty million, three hundred thirty-two thousand, one hundred forty".