1420009603 has 4 divisors (see below), whose sum is σ = 1433796208. Its totient is φ = 1406223000.

The previous prime is 1420009589. The next prime is 1420009663. The reversal of 1420009603 is 3069000241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3069000241 = 101 ⋅30386141.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420009603 is a prime.

It is a super-2 number, since 2×1420009603² = 4032854545224435218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420009663) 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, 6893148 + ... + 6893353.

It is an arithmetic number, because the mean of its divisors is an integer number (358449052).

Almost surely, 2^1420009603 is an apocalyptic number.

1420009603 is a deficient number, since it is larger than the sum of its proper divisors (13786605).

1420009603 is a wasteful number, since it uses less digits than its factorization.

1420009603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13786604.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1420009603 is about 37683.0147811982. The cubic root of 1420009603 is about 1123.9933983372.

Adding to 1420009603 its reverse (3069000241), we get a palindrome (4489009844).

The spelling of 1420009603 in words is "one billion, four hundred twenty million, nine thousand, six hundred three".