145301310440 has 128 divisors (see below), whose sum is σ = 400782816000. Its totient is φ = 46651883520.

The previous prime is 145301310439. The next prime is 145301310443. The reversal of 145301310440 is 44013103541.

It is a happy number.

It is a super-2 number, since 2×145301310440² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (145301310443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 420665 + ... + 683784.

It is an arithmetic number, because the mean of its divisors is an integer number (3131115750).

Almost surely, 2^145301310440 is an apocalyptic number.

145301310440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145301310440 is an abundant number, since it is smaller than the sum of its proper divisors (255481505560).

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

145301310440 is a wasteful number, since it uses less digits than its factorization.

145301310440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104507 (or 1104503 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 145301310440 its reverse (44013103541), we get a palindrome (189314413981).

The spelling of 145301310440 in words is "one hundred forty-five billion, three hundred one million, three hundred ten thousand, four hundred forty".