1421036613 has 12 divisors (see below), whose sum is σ = 2173350348. Its totient is φ = 891630720.

The previous prime is 1421036599. The next prime is 1421036641. The reversal of 1421036613 is 3166301241.

1421036613 is a `hidden beast` number, since 1 + 4 + 2 + 10 + 36 + 613 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 972317124 + 448719489 = 31182^2 + 21183^2 .

It is not a de Polignac number, because 1421036613 - 2⁶ = 1421036549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421036713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4643758 + ... + 4644063.

It is an arithmetic number, because the mean of its divisors is an integer number (181112529).

Almost surely, 2^1421036613 is an apocalyptic number.

It is an amenable number.

1421036613 is a deficient number, since it is larger than the sum of its proper divisors (752313735).

1421036613 is a wasteful number, since it uses less digits than its factorization.

1421036613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9287844 (or 9287841 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1421036613 is about 37696.6392799146. The cubic root of 1421036613 is about 1124.2643059605.

Adding to 1421036613 its reverse (3166301241), we get a palindrome (4587337854).

The spelling of 1421036613 in words is "one billion, four hundred twenty-one million, thirty-six thousand, six hundred thirteen".