4251155 has 16 divisors (see below), whose sum is σ = 5452320. Its totient is φ = 3172608.

The previous prime is 4251131. The next prime is 4251157. The reversal of 4251155 is 5511524.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4251155 - 2⁸ = 4250899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4251155.

It is not an unprimeable number, because it can be changed into a prime (4251157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6629 + ... + 7241.

It is an arithmetic number, because the mean of its divisors is an integer number (340770).

Almost surely, 2^4251155 is an apocalyptic number.

4251155 is a deficient number, since it is larger than the sum of its proper divisors (1201165).

4251155 is a wasteful number, since it uses less digits than its factorization.

4251155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710.

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

The square root of 4251155 is about 2061.8329224261. The cubic root of 4251155 is about 161.9952622706.

Adding to 4251155 its reverse (5511524), we get a palindrome (9762679).

The spelling of 4251155 in words is "four million, two hundred fifty-one thousand, one hundred fifty-five".