1235312664 has 32 divisors (see below), whose sum is σ = 3250824000. Its totient is φ = 390098592.

The previous prime is 1235312653. The next prime is 1235312669. The reversal of 1235312664 is 4662135321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235312669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1354054 + ... + 1354965.

It is an arithmetic number, because the mean of its divisors is an integer number (101588250).

Almost surely, 2^1235312664 is an apocalyptic number.

It is an amenable number.

1235312664 is an abundant number, since it is smaller than the sum of its proper divisors (2015511336).

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

1235312664 is a wasteful number, since it uses less digits than its factorization.

1235312664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2709047 (or 2709043 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 1235312664 is about 35147.0150083901. The cubic root of 1235312664 is about 1072.9816576950.

Adding to 1235312664 its reverse (4662135321), we get a palindrome (5897447985).

The spelling of 1235312664 in words is "one billion, two hundred thirty-five million, three hundred twelve thousand, six hundred sixty-four".