1421511036 has 24 divisors (see below), whose sum is σ = 3618392064. Its totient is φ = 430760880.

The previous prime is 1421511031. The next prime is 1421511053. The reversal of 1421511036 is 6301151241.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1421510997 and 1421511015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421511031) 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, 5384380 + ... + 5384643.

It is an arithmetic number, because the mean of its divisors is an integer number (150766336).

Almost surely, 2^1421511036 is an apocalyptic number.

It is an amenable number.

1421511036 is an abundant number, since it is smaller than the sum of its proper divisors (2196881028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421511036 is a wasteful number, since it uses less digits than its factorization.

1421511036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10769041 (or 10769039 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1421511036 is about 37702.9313979696. The cubic root of 1421511036 is about 1124.3894065371.

Adding to 1421511036 its reverse (6301151241), we get a palindrome (7722662277).

The spelling of 1421511036 in words is "one billion, four hundred twenty-one million, five hundred eleven thousand, thirty-six".