2126450915 has 4 divisors (see below), whose sum is σ = 2551741104. Its totient is φ = 1701160728.

The previous prime is 2126450867. The next prime is 2126450927. The reversal of 2126450915 is 5190546212.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2126450915 - 2⁸ = 2126450659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212645087 + ... + 212645096.

It is an arithmetic number, because the mean of its divisors is an integer number (637935276).

Almost surely, 2^2126450915 is an apocalyptic number.

2126450915 is a deficient number, since it is larger than the sum of its proper divisors (425290189).

2126450915 is an equidigital number, since it uses as much as digits as its factorization.

2126450915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425290188.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 2126450915 is about 46113.4569838350. The cubic root of 2126450915 is about 1285.9333335457.

The spelling of 2126450915 in words is "two billion, one hundred twenty-six million, four hundred fifty thousand, nine hundred fifteen".