1416005021 has 8 divisors (see below), whose sum is σ = 1500103800. Its totient is φ = 1331995648.

The previous prime is 1416005009. The next prime is 1416005083. The reversal of 1416005021 is 1205006141.

It can be written as a sum of positive squares in 4 ways, for example, as 761208100 + 654796921 = 27590^2 + 25589^2 .

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 1416005021 - 2²² = 1411810717 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1416004984 and 1416005002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1416005221) 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, 11765 + ... + 54501.

It is an arithmetic number, because the mean of its divisors is an integer number (187512975).

Almost surely, 2^1416005021 is an apocalyptic number.

It is an amenable number.

1416005021 is a deficient number, since it is larger than the sum of its proper divisors (84098779).

1416005021 is a wasteful number, since it uses less digits than its factorization.

1416005021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44703.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1416005021 is about 37629.8421601792. The cubic root of 1416005021 is about 1122.9358088713.

The spelling of 1416005021 in words is "one billion, four hundred sixteen million, five thousand, twenty-one".