4013951 has 2 divisors, whose sum is σ = 4013952. Its totient is φ = 4013950.

The previous prime is 4013939. The next prime is 4013953. The reversal of 4013951 is 1593104.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4013951 - 2¹⁰ = 4012927 is a prime.

It is a super-2 number, since 2×4013951² = 32223605260802, which contains 22 as substring.

Together with 4013953, 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 (4013953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006975 + 2006976.

It is an arithmetic number, because the mean of its divisors is an integer number (2006976).

Almost surely, 2^4013951 is an apocalyptic number.

4013951 is a deficient number, since it is larger than the sum of its proper divisors (1).

4013951 is an equidigital number, since it uses as much as digits as its factorization.

4013951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 4013951 is about 2003.4847141918. The cubic root of 4013951 is about 158.9244396591.

The spelling of 4013951 in words is "four million, thirteen thousand, nine hundred fifty-one".