2125454015 has 4 divisors (see below), whose sum is σ = 2550544824. Its totient is φ = 1700363208.

The previous prime is 2125454003. The next prime is 2125454027. The reversal of 2125454015 is 5104545212.

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

It is an interprime number because it is at equal distance from previous prime (2125454003) and next prime (2125454027).

It is a cyclic number.

It is not a de Polignac number, because 2125454015 - 2¹⁰ = 2125452991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212545397 + ... + 212545406.

It is an arithmetic number, because the mean of its divisors is an integer number (637636206).

Almost surely, 2^2125454015 is an apocalyptic number.

2125454015 is a deficient number, since it is larger than the sum of its proper divisors (425090809).

2125454015 is an equidigital number, since it uses as much as digits as its factorization.

2125454015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425090808.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 2125454015 is about 46102.6465075488. The cubic root of 2125454015 is about 1285.7323496257.

Adding to 2125454015 its reverse (5104545212), we get a palindrome (7229999227).

The spelling of 2125454015 in words is "two billion, one hundred twenty-five million, four hundred fifty-four thousand, fifteen".