6145355421 has 48 divisors (see below), whose sum is σ = 9603210240. Its totient is φ = 3774587040.

The previous prime is 6145355413. The next prime is 6145355431. The reversal of 6145355421 is 1245535416.

6145355421 is a `hidden beast` number, since 61 + 4 + 53 + 5 + 542 + 1 = 666.

It is not a de Polignac number, because 6145355421 - 2³ = 6145355413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6145355431) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1307686 + ... + 1312376.

It is an arithmetic number, because the mean of its divisors is an integer number (200066880).

Almost surely, 2^6145355421 is an apocalyptic number.

It is an amenable number.

6145355421 is a deficient number, since it is larger than the sum of its proper divisors (3457854819).

6145355421 is a wasteful number, since it uses less digits than its factorization.

6145355421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926 (or 4923 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 6145355421 is about 78392.3173595474. The cubic root of 6145355421 is about 1831.6774630541.

The spelling of 6145355421 in words is "six billion, one hundred forty-five million, three hundred fifty-five thousand, four hundred twenty-one".