145031142233240 has 32 divisors (see below), whose sum is σ = 326773922760000. Its totient is φ = 57931771962624.

The previous prime is 145031142233233. The next prime is 145031142233281. The reversal of 145031142233240 is 42332241130541.

It is a self number, because there is not a number n which added to its sum of digits gives 145031142233240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2521374965 + ... + 2521432484.

It is an arithmetic number, because the mean of its divisors is an integer number (10211685086250).

Almost surely, 2^{145031142233240} is an apocalyptic number.

145031142233240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145031142233240 is an abundant number, since it is smaller than the sum of its proper divisors (181742780526760).

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

145031142233240 is a wasteful number, since it uses less digits than its factorization.

145031142233240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5042808179 (or 5042808175 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 145031142233240 its reverse (42332241130541), we get a palindrome (187363383363781).

The spelling of 145031142233240 in words is "one hundred forty-five trillion, thirty-one billion, one hundred forty-two million, two hundred thirty-three thousand, two hundred forty".