4257937121 has 4 divisors (see below), whose sum is σ = 4289017092. Its totient is φ = 4226857152.

The previous prime is 4257937063. The next prime is 4257937127. The reversal of 4257937121 is 1217397524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 958583521 + 3299353600 = 30961^2 + 57440^2 .

It is a cyclic number.

It is not a de Polignac number, because 4257937121 - 2¹⁸ = 4257674977 is a prime.

It is a super-3 number, since 3×4257937121³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4257937127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15539780 + ... + 15540053.

It is an arithmetic number, because the mean of its divisors is an integer number (1072254273).

Almost surely, 2^4257937121 is an apocalyptic number.

It is an amenable number.

4257937121 is a deficient number, since it is larger than the sum of its proper divisors (31079971).

4257937121 is a wasteful number, since it uses less digits than its factorization.

4257937121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31079970.

The product of its digits is 105840, while the sum is 41.

The square root of 4257937121 is about 65252.8705958596. The cubic root of 4257937121 is about 1620.8136339913.

The spelling of 4257937121 in words is "four billion, two hundred fifty-seven million, nine hundred thirty-seven thousand, one hundred twenty-one".