145315336452 has 96 divisors (see below), whose sum is σ = 400087524480. Its totient is φ = 40470036480.

The previous prime is 145315336433. The next prime is 145315336561. The reversal of 145315336452 is 254633513541.

It is a happy number.

It is a super-2 number, since 2×145315336452² (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 31 ways as a sum of consecutive naturals, for example, 208068 + ... + 577860.

It is an arithmetic number, because the mean of its divisors is an integer number (4167578380).

Almost surely, 2^145315336452 is an apocalyptic number.

145315336452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145315336452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200043762240).

145315336452 is an abundant number, since it is smaller than the sum of its proper divisors (254772188028).

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

145315336452 is a wasteful number, since it uses less digits than its factorization.

145315336452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370053 (or 370051 counting only the distinct ones).

The product of its digits is 648000, while the sum is 42.

Adding to 145315336452 its reverse (254633513541), we get a palindrome (399948849993).

The spelling of 145315336452 in words is "one hundred forty-five billion, three hundred fifteen million, three hundred thirty-six thousand, four hundred fifty-two".