3918151 has 2 divisors, whose sum is σ = 3918152. Its totient is φ = 3918150.

The previous prime is 3918149. The next prime is 3918157. The reversal of 3918151 is 1518193.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3918151 - 2¹ = 3918149 is a prime.

It is a super-3 number, since 3×3918151³ (a number of 21 digits) contains 333 as substring.

Together with 3918149, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3918157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1959075 + 1959076.

It is an arithmetic number, because the mean of its divisors is an integer number (1959076).

Almost surely, 2^3918151 is an apocalyptic number.

3918151 is a deficient number, since it is larger than the sum of its proper divisors (1).

3918151 is an equidigital number, since it uses as much as digits as its factorization.

3918151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 28.

The square root of 3918151 is about 1979.4319892333. The cubic root of 3918151 is about 157.6499085022.

The spelling of 3918151 in words is "three million, nine hundred eighteen thousand, one hundred fifty-one".