707213131 has 16 divisors (see below), whose sum is σ = 758926080. Its totient is φ = 657407520.

The previous prime is 707213113. The next prime is 707213147. The reversal of 707213131 is 131312707.

It is a cyclic number.

It is not a de Polignac number, because 707213131 - 2¹¹ = 707211083 is a prime.

It is a super-2 number, since 2×707213131² = 1000300825317646322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 707213096 and 707213105.

It is not an unprimeable number, because it can be changed into a prime (707213161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206985 + ... + 210373.

It is an arithmetic number, because the mean of its divisors is an integer number (47432880).

Almost surely, 2^707213131 is an apocalyptic number.

707213131 is a deficient number, since it is larger than the sum of its proper divisors (51712949).

707213131 is a wasteful number, since it uses less digits than its factorization.

707213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 707213131 is about 26593.4791067284. The cubic root of 707213131 is about 890.9433800242.

Adding to 707213131 its reverse (131312707), we get a palindrome (838525838).

The spelling of 707213131 in words is "seven hundred seven million, two hundred thirteen thousand, one hundred thirty-one".