7140112381 has 2 divisors, whose sum is σ = 7140112382. Its totient is φ = 7140112380.

The previous prime is 7140112313. The next prime is 7140112409. The reversal of 7140112381 is 1832110417.

It is an a-pointer prime, because the next prime (7140112409) can be obtained adding 7140112381 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6476225625 + 663886756 = 80475^2 + 25766^2 .

It is a cyclic number.

It is not a de Polignac number, because 7140112381 - 2¹¹ = 7140110333 is a prime.

It is a super-2 number, since 2×7140112381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7140119381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3570056190 + 3570056191.

It is an arithmetic number, because the mean of its divisors is an integer number (3570056191).

Almost surely, 2^7140112381 is an apocalyptic number.

It is an amenable number.

7140112381 is a deficient number, since it is larger than the sum of its proper divisors (1).

7140112381 is an equidigital number, since it uses as much as digits as its factorization.

7140112381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 7140112381 is about 84499.1856824668. The cubic root of 7140112381 is about 1925.6100730988.

Adding to 7140112381 its reverse (1832110417), we get a palindrome (8972222798).

The spelling of 7140112381 in words is "seven billion, one hundred forty million, one hundred twelve thousand, three hundred eighty-one".