1421015513 has 8 divisors (see below), whose sum is σ = 1442240640. Its totient is φ = 1399824160.

The previous prime is 1421015483. The next prime is 1421015521. The reversal of 1421015513 is 3155101241.

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 1421015513 - 2⁸ = 1421015257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421015543) 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, 83756 + ... + 99282.

It is an arithmetic number, because the mean of its divisors is an integer number (180280080).

Almost surely, 2^1421015513 is an apocalyptic number.

It is an amenable number.

1421015513 is a deficient number, since it is larger than the sum of its proper divisors (21225127).

1421015513 is a wasteful number, since it uses less digits than its factorization.

1421015513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16887.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1421015513 is about 37696.3594130786. The cubic root of 1421015513 is about 1124.2587414559.

Adding to 1421015513 its reverse (3155101241), we get a palindrome (4576116754).

The spelling of 1421015513 in words is "one billion, four hundred twenty-one million, fifteen thousand, five hundred thirteen".