7140685431 has 32 divisors (see below), whose sum is σ = 10974009600. Its totient is φ = 4084577280.

The previous prime is 7140685427. The next prime is 7140685439. The reversal of 7140685431 is 1345860417.

7140685431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7140685431 - 2² = 7140685427 is a prime.

It is a super-2 number, since 2×7140685431² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7140685431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7140685439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147495 + ... + 189831.

It is an arithmetic number, because the mean of its divisors is an integer number (342937800).

Almost surely, 2^7140685431 is an apocalyptic number.

7140685431 is a deficient number, since it is larger than the sum of its proper divisors (3833324169).

7140685431 is a wasteful number, since it uses less digits than its factorization.

7140685431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42639.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 7140685431 is about 84502.5764755135. The cubic root of 7140685431 is about 1925.6615868227.

The spelling of 7140685431 in words is "seven billion, one hundred forty million, six hundred eighty-five thousand, four hundred thirty-one".