712120505 has 8 divisors (see below), whose sum is σ = 858840000. Its totient is φ = 566832816.

The previous prime is 712120489. The next prime is 712120511. The reversal of 712120505 is 505021217.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 712120505 - 2⁴ = 712120489 is a prime.

It is a super-2 number, since 2×712120505² = 1014231227282910050, which contains 22 as substring.

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, 356855 + ... + 358844.

It is an arithmetic number, because the mean of its divisors is an integer number (107355000).

Almost surely, 2^712120505 is an apocalyptic number.

It is an amenable number.

712120505 is a deficient number, since it is larger than the sum of its proper divisors (146719495).

712120505 is a wasteful number, since it uses less digits than its factorization.

712120505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715903.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 712120505 is about 26685.5860906220. The cubic root of 712120505 is about 892.9993930642. Note that the first 3 decimals are identical.

The spelling of 712120505 in words is "seven hundred twelve million, one hundred twenty thousand, five hundred five".