45001421 has 8 divisors (see below), whose sum is σ = 46123584. Its totient is φ = 43892640.

The previous prime is 45001403. The next prime is 45001441. The reversal of 45001421 is 12410054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45001421 - 2⁶ = 45001357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45001421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45001441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3641 + ... + 10161.

It is an arithmetic number, because the mean of its divisors is an integer number (5765448).

Almost surely, 2^45001421 is an apocalyptic number.

It is an amenable number.

45001421 is a deficient number, since it is larger than the sum of its proper divisors (1122163).

45001421 is a wasteful number, since it uses less digits than its factorization.

45001421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6691.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 45001421 is about 6708.3098467498. The cubic root of 45001421 is about 355.6930743691.

Adding to 45001421 its reverse (12410054), we get a palindrome (57411475).

The spelling of 45001421 in words is "forty-five million, one thousand, four hundred twenty-one".