712151617 has 4 divisors (see below), whose sum is σ = 731398996. Its totient is φ = 692904240.

The previous prime is 712151569. The next prime is 712151633. The reversal of 712151617 is 716151217.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 716151217 = 24677 ⋅29021.

It can be written as a sum of positive squares in 2 ways, for example, as 269091216 + 443060401 = 16404^2 + 21049^2 .

It is a cyclic number.

It is not a de Polignac number, because 712151617 - 2¹¹ = 712149569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712151647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9623634 + ... + 9623707.

It is an arithmetic number, because the mean of its divisors is an integer number (182849749).

Almost surely, 2^712151617 is an apocalyptic number.

It is an amenable number.

712151617 is a deficient number, since it is larger than the sum of its proper divisors (19247379).

712151617 is a wasteful number, since it uses less digits than its factorization.

712151617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19247378.

The product of its digits is 2940, while the sum is 31.

The square root of 712151617 is about 26686.1690206744. The cubic root of 712151617 is about 893.0123976949.

The spelling of 712151617 in words is "seven hundred twelve million, one hundred fifty-one thousand, six hundred seventeen".