4155251 has 2 divisors, whose sum is σ = 4155252. Its totient is φ = 4155250.

The previous prime is 4155247. The next prime is 4155257. The reversal of 4155251 is 1525514.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4155251 - 2² = 4155247 is a prime.

It is a super-2 number, since 2×4155251² = 34532221746002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4155257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2077625 + 2077626.

It is an arithmetic number, because the mean of its divisors is an integer number (2077626).

Almost surely, 2^4155251 is an apocalyptic number.

4155251 is a deficient number, since it is larger than the sum of its proper divisors (1).

4155251 is an equidigital number, since it uses as much as digits as its factorization.

4155251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1000, while the sum is 23.

The square root of 4155251 is about 2038.4432785829. The cubic root of 4155251 is about 160.7678069550.

The spelling of 4155251 in words is "four million, one hundred fifty-five thousand, two hundred fifty-one".