712144540 has 24 divisors (see below), whose sum is σ = 1497992832. Its totient is φ = 284383680.

The previous prime is 712144487. The next prime is 712144547. The reversal of 712144540 is 45441217.

It is a junction number, because it is equal to n+sod(n) for n = 712144499 and 712144508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712144547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17191 + ... + 41470.

It is an arithmetic number, because the mean of its divisors is an integer number (62416368).

Almost surely, 2^712144540 is an apocalyptic number.

It is an amenable number.

712144540 is an abundant number, since it is smaller than the sum of its proper divisors (785848292).

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

712144540 is a wasteful number, since it uses less digits than its factorization.

712144540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59277 (or 59275 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 712144540 is about 26686.0364235680. The cubic root of 712144540 is about 893.0094395843.

Adding to 712144540 its reverse (45441217), we get a palindrome (757585757).

The spelling of 712144540 in words is "seven hundred twelve million, one hundred forty-four thousand, five hundred forty".