31063145 has 8 divisors (see below), whose sum is σ = 37410120. Its totient is φ = 24760960.

The previous prime is 31063129. The next prime is 31063159. The reversal of 31063145 is 54136013.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1175056 + 29888089 = 1084^2 + 5467^2 .

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

It is not a de Polignac number, because 31063145 - 2⁴ = 31063129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31063145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9650 + ... + 12459.

It is an arithmetic number, because the mean of its divisors is an integer number (4676265).

Almost surely, 2^31063145 is an apocalyptic number.

It is an amenable number.

31063145 is a deficient number, since it is larger than the sum of its proper divisors (6346975).

31063145 is a wasteful number, since it uses less digits than its factorization.

31063145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22395.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 31063145 is about 5573.4320665098. The cubic root of 31063145 is about 314.3512135721.

Adding to 31063145 its reverse (54136013), we get a palindrome (85199158).

The spelling of 31063145 in words is "thirty-one million, sixty-three thousand, one hundred forty-five".