145023214040 has 16 divisors (see below), whose sum is σ = 326302231680. Its totient is φ = 58009285600.

The previous prime is 145023214033. The next prime is 145023214067. The reversal of 145023214040 is 40412320541.

It is a super-2 number, since 2×145023214040² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1812790136 + ... + 1812790215.

It is an arithmetic number, because the mean of its divisors is an integer number (20393889480).

Almost surely, 2^145023214040 is an apocalyptic number.

145023214040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145023214040 is an abundant number, since it is smaller than the sum of its proper divisors (181279017640).

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

145023214040 is a wasteful number, since it uses less digits than its factorization.

145023214040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625580362 (or 3625580358 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 145023214040 its reverse (40412320541), we get a palindrome (185435534581).

The spelling of 145023214040 in words is "one hundred forty-five billion, twenty-three million, two hundred fourteen thousand, forty".