2145226567 has 32 divisors (see below), whose sum is σ = 2459750400. Its totient is φ = 1853280000.

The previous prime is 2145226561. The next prime is 2145226571. The reversal of 2145226567 is 7656225412.

It is not a de Polignac number, because 2145226567 - 2⁷ = 2145226439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145226561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6853603 + ... + 6853915.

It is an arithmetic number, because the mean of its divisors is an integer number (76867200).

Almost surely, 2^2145226567 is an apocalyptic number.

2145226567 is a deficient number, since it is larger than the sum of its proper divisors (314523833).

2145226567 is a wasteful number, since it uses less digits than its factorization.

2145226567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655.

The product of its digits is 201600, while the sum is 40.

The square root of 2145226567 is about 46316.5906236631. The cubic root of 2145226567 is about 1289.7069957294.

The spelling of 2145226567 in words is "two billion, one hundred forty-five million, two hundred twenty-six thousand, five hundred sixty-seven".