1235606397 has 8 divisors (see below), whose sum is σ = 1670679360. Its totient is φ = 812135520.

The previous prime is 1235606387. The next prime is 1235606413. The reversal of 1235606397 is 7936065321.

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

It is not a de Polignac number, because 1235606397 - 2⁷ = 1235606269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235606357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2900272 + ... + 2900697.

It is an arithmetic number, because the mean of its divisors is an integer number (208834920).

Almost surely, 2^1235606397 is an apocalyptic number.

It is an amenable number.

1235606397 is a deficient number, since it is larger than the sum of its proper divisors (435072963).

1235606397 is an equidigital number, since it uses as much as digits as its factorization.

1235606397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5801043.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 1235606397 is about 35151.1933936815. The cubic root of 1235606397 is about 1073.0666955842.

The spelling of 1235606397 in words is "one billion, two hundred thirty-five million, six hundred six thousand, three hundred ninety-seven".