7430131 has 2 divisors, whose sum is σ = 7430132. Its totient is φ = 7430130.

The previous prime is 7430117. The next prime is 7430141. The reversal of 7430131 is 1310347.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7430131 - 2²¹ = 5332979 is a prime.

It is a super-2 number, since 2×7430131² = 110413693354322, which contains 22 as substring.

It is a Chen prime.

7430131 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7430099 and 7430108.

It is not a weakly prime, because it can be changed into another prime (7430141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3715065 + 3715066.

It is an arithmetic number, because the mean of its divisors is an integer number (3715066).

Almost surely, 2^7430131 is an apocalyptic number.

7430131 is a deficient number, since it is larger than the sum of its proper divisors (1).

7430131 is an equidigital number, since it uses as much as digits as its factorization.

7430131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 7430131 is about 2725.8266636013. The cubic root of 7430131 is about 195.1336449611.

Adding to 7430131 its reverse (1310347), we get a palindrome (8740478).

The spelling of 7430131 in words is "seven million, four hundred thirty thousand, one hundred thirty-one".