1631056120 has 32 divisors (see below), whose sum is σ = 3716337600. Its totient is φ = 644162688.

The previous prime is 1631056117. The next prime is 1631056123. The reversal of 1631056120 is 216501361.

It is an interprime number because it is at equal distance from previous prime (1631056117) and next prime (1631056123).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1631056123) by changing a digit.

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, 254919 + ... + 261238.

It is an arithmetic number, because the mean of its divisors is an integer number (116135550).

Almost surely, 2^1631056120 is an apocalyptic number.

1631056120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1631056120 is an abundant number, since it is smaller than the sum of its proper divisors (2085281480).

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

1631056120 is a wasteful number, since it uses less digits than its factorization.

1631056120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516247 (or 516243 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1631056120 is about 40386.3358080428. The cubic root of 1631056120 is about 1177.1260424785.

Adding to 1631056120 its reverse (216501361), we get a palindrome (1847557481).

The spelling of 1631056120 in words is "one billion, six hundred thirty-one million, fifty-six thousand, one hundred twenty".