31245241 has 8 divisors (see below), whose sum is σ = 32697344. Its totient is φ = 29820960.

The previous prime is 31245217. The next prime is 31245251. The reversal of 31245241 is 14254213.

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 31245241 - 2⁷ = 31245113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31245251) 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, 4641 + ... + 9166.

It is an arithmetic number, because the mean of its divisors is an integer number (4087168).

Almost surely, 2^31245241 is an apocalyptic number.

31245241 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31245241 is a deficient number, since it is larger than the sum of its proper divisors (1452103).

31245241 is a wasteful number, since it uses less digits than its factorization.

31245241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13911.

The product of its digits is 960, while the sum is 22.

The square root of 31245241 is about 5589.7442696424. The cubic root of 31245241 is about 314.9642724239.

Adding to 31245241 its reverse (14254213), we get a palindrome (45499454).

The spelling of 31245241 in words is "thirty-one million, two hundred forty-five thousand, two hundred forty-one".