1260100135 has 16 divisors (see below), whose sum is σ = 1741335552. Its totient is φ = 857469600.

The previous prime is 1260100133. The next prime is 1260100147. The reversal of 1260100135 is 5310010621.

It is not a de Polignac number, because 1260100135 - 2¹ = 1260100133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260100133) 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, 132831 + ... + 142000.

It is an arithmetic number, because the mean of its divisors is an integer number (108833472).

Almost surely, 2^1260100135 is an apocalyptic number.

1260100135 is a deficient number, since it is larger than the sum of its proper divisors (481235417).

1260100135 is a wasteful number, since it uses less digits than its factorization.

1260100135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274974.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1260100135 is about 35497.8891625967. The cubic root of 1260100135 is about 1080.1109096775.

Adding to 1260100135 its reverse (5310010621), we get a palindrome (6570110756).

The spelling of 1260100135 in words is "one billion, two hundred sixty million, one hundred thousand, one hundred thirty-five".