1631130201 has 24 divisors (see below), whose sum is σ = 2440106760. Its totient is φ = 1048723200.

The previous prime is 1631130197. The next prime is 1631130203. The reversal of 1631130201 is 1020311361.

1631130201 is a `hidden beast` number, since 1 + 631 + 1 + 30 + 2 + 0 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 81920601 + 1549209600 = 9051^2 + 39360^2 .

It is not a de Polignac number, because 1631130201 - 2² = 1631130197 is a prime.

It is a super-2 number, since 2×1631130201² = 5321171465228600802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1631130203) 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 23 ways as a sum of consecutive naturals, for example, 263421 + ... + 269541.

It is an arithmetic number, because the mean of its divisors is an integer number (101671115).

Almost surely, 2^1631130201 is an apocalyptic number.

It is an amenable number.

1631130201 is a deficient number, since it is larger than the sum of its proper divisors (808976559).

1631130201 is a wasteful number, since it uses less digits than its factorization.

1631130201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7177 (or 7174 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1631130201 is about 40387.2529518906. The cubic root of 1631130201 is about 1177.1438635195.

Adding to 1631130201 its reverse (1020311361), we get a palindrome (2651441562).

The spelling of 1631130201 in words is "one billion, six hundred thirty-one million, one hundred thirty thousand, two hundred one".