1235742530 has 16 divisors (see below), whose sum is σ = 2426549184. Its totient is φ = 449360880.

The previous prime is 1235742517. The next prime is 1235742559. The reversal of 1235742530 is 352475321.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 5616902 + ... + 5617121.

It is an arithmetic number, because the mean of its divisors is an integer number (151659324).

Almost surely, 2^1235742530 is an apocalyptic number.

1235742530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1235742530 is a deficient number, since it is larger than the sum of its proper divisors (1190806654).

1235742530 is a wasteful number, since it uses less digits than its factorization.

1235742530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11234041.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 1235742530 is about 35153.1297326426. The cubic root of 1235742530 is about 1073.1061025302.

The spelling of 1235742530 in words is "one billion, two hundred thirty-five million, seven hundred forty-two thousand, five hundred thirty".