3601521131 has 8 divisors (see below), whose sum is σ = 4003676544. Its totient is φ = 3217239360.

The previous prime is 3601521127. The next prime is 3601521151. The reversal of 3601521131 is 1311251063.

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 3601521131 - 2² = 3601521127 is a prime.

It is a super-2 number, since 2×3601521131² = 25941908914079038322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3601521097 and 3601521106.

It is not an unprimeable number, because it can be changed into a prime (3601521151) 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, 4467986 + ... + 4468791.

It is an arithmetic number, because the mean of its divisors is an integer number (500459568).

Almost surely, 2^3601521131 is an apocalyptic number.

3601521131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3601521131 is a deficient number, since it is larger than the sum of its proper divisors (402155413).

3601521131 is a wasteful number, since it uses less digits than its factorization.

3601521131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8936821.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 3601521131 is about 60012.6747529220. The cubic root of 3601521131 is about 1532.8346968046.

Adding to 3601521131 its reverse (1311251063), we get a palindrome (4912772194).

The spelling of 3601521131 in words is "three billion, six hundred one million, five hundred twenty-one thousand, one hundred thirty-one".