31480953 has 16 divisors (see below), whose sum is σ = 48132480. Its totient is φ = 17928576.

The previous prime is 31480949. The next prime is 31480963. The reversal of 31480953 is 35908413.

It is not a de Polignac number, because 31480953 - 2² = 31480949 is a prime.

It is a super-3 number, since 3×31480953³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31480913) 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 15 ways as a sum of consecutive naturals, for example, 4293 + ... + 9021.

It is an arithmetic number, because the mean of its divisors is an integer number (3008280).

Almost surely, 2^31480953 is an apocalyptic number.

It is an amenable number.

31480953 is a deficient number, since it is larger than the sum of its proper divisors (16651527).

31480953 is a wasteful number, since it uses less digits than its factorization.

31480953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 31480953 is about 5610.7889819525. The cubic root of 31480953 is about 315.7543121801.

The spelling of 31480953 in words is "thirty-one million, four hundred eighty thousand, nine hundred fifty-three".