1416444145 has 4 divisors (see below), whose sum is σ = 1699732980. Its totient is φ = 1133155312.

The previous prime is 1416444143. The next prime is 1416444151. The reversal of 1416444145 is 5414446141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5414446141 = 13 ⋅416495857.

It can be written as a sum of positive squares in 2 ways, for example, as 691111521 + 725332624 = 26289^2 + 26932^2 .

It is a cyclic number.

It is not a de Polignac number, because 1416444145 - 2¹ = 1416444143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1416444145.

It is not an unprimeable number, because it can be changed into a prime (1416444143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141644410 + ... + 141644419.

It is an arithmetic number, because the mean of its divisors is an integer number (424933245).

Almost surely, 2^1416444145 is an apocalyptic number.

It is an amenable number.

1416444145 is a deficient number, since it is larger than the sum of its proper divisors (283288835).

1416444145 is an equidigital number, since it uses as much as digits as its factorization.

1416444145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283288834.

The product of its digits is 30720, while the sum is 34.

The square root of 1416444145 is about 37635.6764918608. The cubic root of 1416444145 is about 1123.0518765152.

The spelling of 1416444145 in words is "one billion, four hundred sixteen million, four hundred forty-four thousand, one hundred forty-five".