145001340 has 240 divisors, whose sum is σ = 507386880. Its totient is φ = 34369920.

The previous prime is 145001317. The next prime is 145001341. The reversal of 145001340 is 43100541.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145001341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1407729 + ... + 1407831.

It is an arithmetic number, because the mean of its divisors is an integer number (2114112).

Almost surely, 2^145001340 is an apocalyptic number.

145001340 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 145001340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253693440).

145001340 is an abundant number, since it is smaller than the sum of its proper divisors (362385540).

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

145001340 is a wasteful number, since it uses less digits than its factorization.

145001340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 145001340 is about 12041.6502191352. The cubic root of 145001340 is about 525.3604055909.

Adding to 145001340 its reverse (43100541), we get a palindrome (188101881).

The spelling of 145001340 in words is "one hundred forty-five million, one thousand, three hundred forty".