145373540 has 48 divisors (see below), whose sum is σ = 336439488. Its totient is φ = 52424064.

The previous prime is 145373537. The next prime is 145373561. The reversal of 145373540 is 45373541.

It is a super-2 number, since 2×145373540² = 42266932264263200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145373497 and 145373506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4679 + ... + 17681.

It is an arithmetic number, because the mean of its divisors is an integer number (7009156).

Almost surely, 2^145373540 is an apocalyptic number.

145373540 is a gapful number since it is divisible by the number (10) 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 145373540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168219744).

145373540 is an abundant number, since it is smaller than the sum of its proper divisors (191065948).

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

145373540 is a wasteful number, since it uses less digits than its factorization.

145373540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13068 (or 13066 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 145373540 is about 12057.0950066755. The cubic root of 145373540 is about 525.8095326429.

Subtracting from 145373540 its reverse (45373541), we obtain a palindrome (99999999).

The spelling of 145373540 in words is "one hundred forty-five million, three hundred seventy-three thousand, five hundred forty".