2147225405 has 16 divisors (see below), whose sum is σ = 2778633984. Its totient is φ = 1583496000.

The previous prime is 2147225401. The next prime is 2147225413. The reversal of 2147225405 is 5045227412.

It is not a de Polignac number, because 2147225405 - 2² = 2147225401 is a prime.

It is a super-2 number, since 2×2147225405² = 9221153879754828050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147225401) 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, 26822 + ... + 70808.

It is an arithmetic number, because the mean of its divisors is an integer number (173664624).

Almost surely, 2^2147225405 is an apocalyptic number.

It is an amenable number.

2147225405 is a deficient number, since it is larger than the sum of its proper divisors (631408579).

2147225405 is a wasteful number, since it uses less digits than its factorization.

2147225405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44756.

The product of its (nonzero) digits is 22400, while the sum is 32.

The square root of 2147225405 is about 46338.1635911481. The cubic root of 2147225405 is about 1290.1074375194.

The spelling of 2147225405 in words is "two billion, one hundred forty-seven million, two hundred twenty-five thousand, four hundred five".