1421135526 has 16 divisors (see below), whose sum is σ = 2884693824. Its totient is φ = 466641384.

The previous prime is 1421135501. The next prime is 1421135539. The reversal of 1421135526 is 6255311241.

It is a junction number, because it is equal to n+sod(n) for n = 1421135493 and 1421135502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1767180 + ... + 1767983.

It is an arithmetic number, because the mean of its divisors is an integer number (180293364).

Almost surely, 2^1421135526 is an apocalyptic number.

1421135526 is an abundant number, since it is smaller than the sum of its proper divisors (1463558298).

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

1421135526 is a wasteful number, since it uses less digits than its factorization.

1421135526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535235.

The product of its digits is 7200, while the sum is 30.

The square root of 1421135526 is about 37697.9512175397. The cubic root of 1421135526 is about 1124.2903906216.

Adding to 1421135526 its reverse (6255311241), we get a palindrome (7676446767).

The spelling of 1421135526 in words is "one billion, four hundred twenty-one million, one hundred thirty-five thousand, five hundred twenty-six".