1215253010135 has 16 divisors (see below), whose sum is σ = 1466930545920. Its totient is φ = 966467673600.

The previous prime is 1215253010107. The next prime is 1215253010137. The reversal of 1215253010135 is 5310103525121.

It is not a de Polignac number, because 1215253010135 - 2⁶ = 1215253010071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1215253010098 and 1215253010107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215253010137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446855 + ... + 1621784.

It is an arithmetic number, because the mean of its divisors is an integer number (91683159120).

Almost surely, 2^{1215253010135} is an apocalyptic number.

1215253010135 is a deficient number, since it is larger than the sum of its proper divisors (251677535785).

1215253010135 is a wasteful number, since it uses less digits than its factorization.

1215253010135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069338.

The product of its (nonzero) digits is 4500, while the sum is 29.

Adding to 1215253010135 its reverse (5310103525121), we get a palindrome (6525356535256).

The spelling of 1215253010135 in words is "one trillion, two hundred fifteen billion, two hundred fifty-three million, ten thousand, one hundred thirty-five".