5146126121 has 4 divisors (see below), whose sum is σ = 5152924932. Its totient is φ = 5139327312.

The previous prime is 5146126081. The next prime is 5146126127. The reversal of 5146126121 is 1216216415.

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 2749534096 + 2396592025 = 52436^2 + 48955^2 .

It is a cyclic number.

It is not a de Polignac number, because 5146126121 - 2³⁰ = 4072384297 is a prime.

It is a super-2 number, since 2×5146126121² = 52965228106477013282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5146126127) 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, 3398270 + ... + 3399783.

It is an arithmetic number, because the mean of its divisors is an integer number (1288231233).

Almost surely, 2^5146126121 is an apocalyptic number.

It is an amenable number.

5146126121 is a deficient number, since it is larger than the sum of its proper divisors (6798811).

5146126121 is an equidigital number, since it uses as much as digits as its factorization.

5146126121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6798810.

The product of its digits is 2880, while the sum is 29.

The square root of 5146126121 is about 71736.5048005546. The cubic root of 5146126121 is about 1726.4743953695.

The spelling of 5146126121 in words is "five billion, one hundred forty-six million, one hundred twenty-six thousand, one hundred twenty-one".