145321400032 has 48 divisors (see below), whose sum is σ = 286932536352. Its totient is φ = 72449925120.

The previous prime is 145321400027. The next prime is 145321400039. The reversal of 145321400032 is 230004123541.

It is a super-2 number, since 2×145321400032² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145321400039) 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, 20873032 + ... + 20879992.

It is an arithmetic number, because the mean of its divisors is an integer number (5977761174).

Almost surely, 2^145321400032 is an apocalyptic number.

It is an amenable number.

145321400032 is a deficient number, since it is larger than the sum of its proper divisors (141611136320).

145321400032 is a wasteful number, since it uses less digits than its factorization.

145321400032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8771 (or 8763 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 145321400032 its reverse (230004123541), we get a palindrome (375325523573).

The spelling of 145321400032 in words is "one hundred forty-five billion, three hundred twenty-one million, four hundred thousand, thirty-two".