1262542530 has 32 divisors (see below), whose sum is σ = 3031064064. Its totient is φ = 336571136.

The previous prime is 1262542511. The next prime is 1262542537. The reversal of 1262542530 is 352452621.

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

It is not an unprimeable number, because it can be changed into a prime (1262542537) 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, 148474 + ... + 156746.

It is an arithmetic number, because the mean of its divisors is an integer number (94720752).

Almost surely, 2^1262542530 is an apocalyptic number.

1262542530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1262542530 is an abundant number, since it is smaller than the sum of its proper divisors (1768521534).

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

1262542530 is a wasteful number, since it uses less digits than its factorization.

1262542530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13370.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1262542530 is about 35532.2744839111. The cubic root of 1262542530 is about 1080.8083026428.

It can be divided in two parts, 12625 and 42530, that added together give a palindrome (55155).

The spelling of 1262542530 in words is "one billion, two hundred sixty-two million, five hundred forty-two thousand, five hundred thirty".