1421500045 has 20 divisors (see below), whose sum is σ = 1989998460. Its totient is φ = 974734656.

The previous prime is 1421500001. The next prime is 1421500099. The reversal of 1421500045 is 5400051241.

1421500045 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 943902729 + 477597316 = 30723^2 + 21854^2 .

It is not a de Polignac number, because 1421500045 - 2²⁵ = 1387945613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1421499989 and 1421500025.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 47200 + ... + 71209.

It is an arithmetic number, because the mean of its divisors is an integer number (99499923).

Almost surely, 2^1421500045 is an apocalyptic number.

It is an amenable number.

1421500045 is a deficient number, since it is larger than the sum of its proper divisors (568498415).

1421500045 is an frugal number, since it uses more digits than its factorization.

1421500045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118442 (or 118421 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1421500045 is about 37702.7856397906. The cubic root of 1421500045 is about 1124.3865086358.

Adding to 1421500045 its reverse (5400051241), we get a palindrome (6821551286).

The spelling of 1421500045 in words is "one billion, four hundred twenty-one million, five hundred thousand, forty-five".