31144201 has 8 divisors (see below), whose sum is σ = 34221600. Its totient is φ = 28107840.

The previous prime is 31144199. The next prime is 31144207. The reversal of 31144201 is 10244113.

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 31144201 - 2¹ = 31144199 is a prime.

It is a super-2 number, since 2×31144201² = 1939922511856802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31144207) 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 7 ways as a sum of consecutive naturals, for example, 8656 + ... + 11713.

It is an arithmetic number, because the mean of its divisors is an integer number (4277700).

Almost surely, 2^31144201 is an apocalyptic number.

It is an amenable number.

31144201 is a deficient number, since it is larger than the sum of its proper divisors (3077399).

31144201 is a wasteful number, since it uses less digits than its factorization.

31144201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20519.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 31144201 is about 5580.6989705592. The cubic root of 31144201 is about 314.6243982044.

Adding to 31144201 its reverse (10244113), we get a palindrome (41388314).

The spelling of 31144201 in words is "thirty-one million, one hundred forty-four thousand, two hundred one".