1235642113 has 8 divisors (see below), whose sum is σ = 1275989760. Its totient is φ = 1195325040.

The previous prime is 1235642077. The next prime is 1235642119. The reversal of 1235642113 is 3112465321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1235642113 - 2¹³ = 1235633921 is a prime.

It is a super-2 number, since 2×1235642113² = 3053622862838209538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1235642119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97803 + ... + 109711.

It is an arithmetic number, because the mean of its divisors is an integer number (159498720).

Almost surely, 2^1235642113 is an apocalyptic number.

It is an amenable number.

1235642113 is a deficient number, since it is larger than the sum of its proper divisors (40347647).

1235642113 is a wasteful number, since it uses less digits than its factorization.

1235642113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15287.

The product of its digits is 4320, while the sum is 28.

The square root of 1235642113 is about 35151.7014239709. The cubic root of 1235642113 is about 1073.0770347129.

The spelling of 1235642113 in words is "one billion, two hundred thirty-five million, six hundred forty-two thousand, one hundred thirteen".