7231474381 has 2 divisors, whose sum is σ = 7231474382. Its totient is φ = 7231474380.

The previous prime is 7231474291. The next prime is 7231474387. The reversal of 7231474381 is 1834741327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6126975625 + 1104498756 = 78275^2 + 33234^2 .

It is a cyclic number.

It is not a de Polignac number, because 7231474381 - 2¹³ = 7231466189 is a prime.

It is a super-2 number, since 2×7231474381² (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 (7231474387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3615737190 + 3615737191.

It is an arithmetic number, because the mean of its divisors is an integer number (3615737191).

Almost surely, 2^7231474381 is an apocalyptic number.

It is an amenable number.

7231474381 is a deficient number, since it is larger than the sum of its proper divisors (1).

7231474381 is an equidigital number, since it uses as much as digits as its factorization.

7231474381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 40.

The square root of 7231474381 is about 85038.0760659600. The cubic root of 7231474381 is about 1933.7883995736.

The spelling of 7231474381 in words is "seven billion, two hundred thirty-one million, four hundred seventy-four thousand, three hundred eighty-one".