145401752322 has 30 divisors (see below), whose sum is σ = 325818505683. Its totient is φ = 48465632988.

The previous prime is 145401752297. The next prime is 145401752339. The reversal of 145401752322 is 223257104541.

145401752322 is a `hidden beast` number, since 1 + 4 + 540 + 1 + 75 + 23 + 22 = 666.

It can be written as a sum of positive squares in only one way, i.e., 72700876161 + 72700876161 = 269631^2 + 269631^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=269631.

It is a super-2 number, since 2×145401752322² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 4838379 + ... + 4868337.

Almost surely, 2^145401752322 is an apocalyptic number.

145401752322 is an abundant number, since it is smaller than the sum of its proper divisors (180416753361).

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

145401752322 is an frugal number, since it uses more digits than its factorization.

145401752322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59932 (or 29964 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

Adding to 145401752322 its reverse (223257104541), we get a palindrome (368658856863).

The spelling of 145401752322 in words is "one hundred forty-five billion, four hundred one million, seven hundred fifty-two thousand, three hundred twenty-two".