1230731775 has 216 divisors, whose sum is σ = 2860900224. Its totient is φ = 500774400.

The previous prime is 1230731773. The next prime is 1230731839. The reversal of 1230731775 is 5771370321.

It is not a de Polignac number, because 1230731775 - 2¹ = 1230731773 is a prime.

It is a super-3 number, since 3×1230731775³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230731773) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 4442937 + ... + 4443213.

Almost surely, 2^1230731775 is an apocalyptic number.

1230731775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1230731775 is an abundant number, since it is smaller than the sum of its proper divisors (1630168449).

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

1230731775 is a wasteful number, since it uses less digits than its factorization.

1230731775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 30870, while the sum is 36.

The square root of 1230731775 is about 35081.7869413746. The cubic root of 1230731775 is about 1071.6537083082.

The spelling of 1230731775 in words is "one billion, two hundred thirty million, seven hundred thirty-one thousand, seven hundred seventy-five".