146344441321 has 8 divisors (see below), whose sum is σ = 157641873480. Its totient is φ = 135052747392.

The previous prime is 146344441307. The next prime is 146344441351. The reversal of 146344441321 is 123144443641.

It can be written as a sum of positive squares in 4 ways, for example, as 7558389721 + 138786051600 = 86939^2 + 372540^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 146344441321 - 2⁵ = 146344441289 is a prime.

It is a super-2 number, since 2×146344441321² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (146344441351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1381510 + ... + 1483663.

It is an arithmetic number, because the mean of its divisors is an integer number (19705234185).

Almost surely, 2^146344441321 is an apocalyptic number.

It is an amenable number.

146344441321 is a deficient number, since it is larger than the sum of its proper divisors (11297432159).

146344441321 is a wasteful number, since it uses less digits than its factorization.

146344441321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869115.

The product of its digits is 110592, while the sum is 37.

Adding to 146344441321 its reverse (123144443641), we get a palindrome (269488884962).

The spelling of 146344441321 in words is "one hundred forty-six billion, three hundred forty-four million, four hundred forty-one thousand, three hundred twenty-one".