3731521201 has 2 divisors, whose sum is σ = 3731521202. Its totient is φ = 3731521200.

The previous prime is 3731521153. The next prime is 3731521229. The reversal of 3731521201 is 1021251373.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2435521201 + 1296000000 = 49351^2 + 36000^2 .

It is an emirp because it is prime and its reverse (1021251373) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3731521201 is a prime.

It is not a weakly prime, because it can be changed into another prime (3731521271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1865760600 + 1865760601.

It is an arithmetic number, because the mean of its divisors is an integer number (1865760601).

Almost surely, 2^3731521201 is an apocalyptic number.

It is an amenable number.

3731521201 is a deficient number, since it is larger than the sum of its proper divisors (1).

3731521201 is an equidigital number, since it uses as much as digits as its factorization.

3731521201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 3731521201 is about 61086.1784776229. The cubic root of 3731521201 is about 1551.0601420282.

Adding to 3731521201 its reverse (1021251373), we get a palindrome (4752772574).

The spelling of 3731521201 in words is "three billion, seven hundred thirty-one million, five hundred twenty-one thousand, two hundred one".