146287131280 has 20 divisors (see below), whose sum is σ = 340117580412. Its totient is φ = 58514852480.

The previous prime is 146287131271. The next prime is 146287131293. The reversal of 146287131280 is 82131782641.

It can be written as a sum of positive squares in 2 ways, for example, as 98817179904 + 47469951376 = 314352^2 + 217876^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914294491 + ... + 914294650.

Almost surely, 2^146287131280 is an apocalyptic number.

146287131280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146287131280 is an abundant number, since it is smaller than the sum of its proper divisors (193830449132).

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

146287131280 is a wasteful number, since it uses less digits than its factorization.

146287131280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828589154 (or 1828589148 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 146287131280 in words is "one hundred forty-six billion, two hundred eighty-seven million, one hundred thirty-one thousand, two hundred eighty".