715241561 has 8 divisors (see below), whose sum is σ = 777783240. Its totient is φ = 654974208.

The previous prime is 715241551. The next prime is 715241573. The reversal of 715241561 is 165142517.

It can be written as a sum of positive squares in 4 ways, for example, as 332843536 + 382398025 = 18244^2 + 19555^2 .

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 715241561 - 2¹⁴ = 715225177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (715241551) 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, 567926 + ... + 569183.

It is an arithmetic number, because the mean of its divisors is an integer number (97222905).

Almost surely, 2^715241561 is an apocalyptic number.

It is an amenable number.

715241561 is a deficient number, since it is larger than the sum of its proper divisors (62541679).

715241561 is a wasteful number, since it uses less digits than its factorization.

715241561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137163.

The product of its digits is 8400, while the sum is 32.

The square root of 715241561 is about 26744.0004673946. Note that the first 3 decimals coincide. The cubic root of 715241561 is about 894.3020935876.

The spelling of 715241561 in words is "seven hundred fifteen million, two hundred forty-one thousand, five hundred sixty-one".