145132446322 has 8 divisors (see below), whose sum is σ = 217834650972. Its totient is φ = 72520896000.

The previous prime is 145132446317. The next prime is 145132446323. The reversal of 145132446322 is 223644231541.

It can be written as a sum of positive squares in 2 ways, for example, as 145070336161 + 62110161 = 380881^2 + 7881^2 .

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

It is a super-2 number, since 2×145132446322² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145132446323) 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, 22659579 + ... + 22665982.

Almost surely, 2^145132446322 is an apocalyptic number.

145132446322 is a deficient number, since it is larger than the sum of its proper divisors (72702204650).

145132446322 is a wasteful number, since it uses less digits than its factorization.

145132446322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45327164.

The product of its digits is 138240, while the sum is 37.

Adding to 145132446322 its reverse (223644231541), we get a palindrome (368776677863).

The spelling of 145132446322 in words is "one hundred forty-five billion, one hundred thirty-two million, four hundred forty-six thousand, three hundred twenty-two".