421250545 has 16 divisors (see below), whose sum is σ = 509967360. Its totient is φ = 334036224.

The previous prime is 421250527. The next prime is 421250551. The reversal of 421250545 is 545052124.

It is a cyclic number.

It is not a de Polignac number, because 421250545 - 2⁹ = 421250033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386992 + ... + 388078.

It is an arithmetic number, because the mean of its divisors is an integer number (31872960).

Almost surely, 2^421250545 is an apocalyptic number.

It is an amenable number.

421250545 is a deficient number, since it is larger than the sum of its proper divisors (88716815).

421250545 is a wasteful number, since it uses less digits than its factorization.

421250545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 421250545 is about 20524.3890286654. The cubic root of 421250545 is about 749.6297698622.

The spelling of 421250545 in words is "four hundred twenty-one million, two hundred fifty thousand, five hundred forty-five".