1630531201 has 8 divisors (see below), whose sum is σ = 1757322560. Its totient is φ = 1503934992.

The previous prime is 1630531187. The next prime is 1630531223. The reversal of 1630531201 is 1021350361.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1630531201 - 2⁷ = 1630531073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1630531271) 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, 31191 + ... + 65068.

It is an arithmetic number, because the mean of its divisors is an integer number (219665320).

Almost surely, 2^1630531201 is an apocalyptic number.

It is an amenable number.

1630531201 is a deficient number, since it is larger than the sum of its proper divisors (126791359).

1630531201 is a wasteful number, since it uses less digits than its factorization.

1630531201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97575.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1630531201 is about 40379.8365648005. The cubic root of 1630531201 is about 1176.9997516835. Note that the first 3 decimals are identical.

Adding to 1630531201 its reverse (1021350361), we get a palindrome (2651881562).

The spelling of 1630531201 in words is "one billion, six hundred thirty million, five hundred thirty-one thousand, two hundred one".