4156331 has 2 divisors, whose sum is σ = 4156332. Its totient is φ = 4156330.

The previous prime is 4156301. The next prime is 4156333. The reversal of 4156331 is 1336514.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4156331 is a prime.

It is a super-2 number, since 2×4156331² = 34550174763122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 4156333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4156297 and 4156306.

It is not a weakly prime, because it can be changed into another prime (4156333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2078165 + 2078166.

It is an arithmetic number, because the mean of its divisors is an integer number (2078166).

Almost surely, 2^4156331 is an apocalyptic number.

4156331 is a deficient number, since it is larger than the sum of its proper divisors (1).

4156331 is an equidigital number, since it uses as much as digits as its factorization.

4156331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 23.

The square root of 4156331 is about 2038.7081694053. The cubic root of 4156331 is about 160.7817342478.

The spelling of 4156331 in words is "four million, one hundred fifty-six thousand, three hundred thirty-one".