1266142530 has 32 divisors (see below), whose sum is σ = 3042247104. Its totient is φ = 337248576.

The previous prime is 1266142519. The next prime is 1266142543. The reversal of 1266142530 is 352416621.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2592 + ... + 50388.

It is an arithmetic number, because the mean of its divisors is an integer number (95070222).

Almost surely, 2^1266142530 is an apocalyptic number.

1266142530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1266142530 is an abundant number, since it is smaller than the sum of its proper divisors (1776104574).

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

1266142530 is a wasteful number, since it uses less digits than its factorization.

1266142530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48690.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1266142530 is about 35582.8965937288. The cubic root of 1266142530 is about 1081.8345961414.

The spelling of 1266142530 in words is "one billion, two hundred sixty-six million, one hundred forty-two thousand, five hundred thirty".