6145267221 has 6 divisors (see below), whose sum is σ = 8876497110. Its totient is φ = 4096844808.

The previous prime is 6145267207. The next prime is 6145267279. The reversal of 6145267221 is 1227625416.

It is a happy number.

6145267221 is a `hidden beast` number, since 61 + 4 + 526 + 72 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6135588900 + 9678321 = 78330^2 + 3111^2 .

It is not a de Polignac number, because 6145267221 - 2⁶ = 6145267157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6145267201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 341403726 + ... + 341403743.

It is an arithmetic number, because the mean of its divisors is an integer number (1479416185).

Almost surely, 2^6145267221 is an apocalyptic number.

It is an amenable number.

6145267221 is a deficient number, since it is larger than the sum of its proper divisors (2731229889).

6145267221 is a wasteful number, since it uses less digits than its factorization.

6145267221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682807475 (or 682807472 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 6145267221 is about 78391.7548024025. The cubic root of 6145267221 is about 1831.6687000825.

The spelling of 6145267221 in words is "six billion, one hundred forty-five million, two hundred sixty-seven thousand, two hundred twenty-one".