31451053 has 4 divisors (see below), whose sum is σ = 31576608. Its totient is φ = 31325500.

The previous prime is 31451047. The next prime is 31451111. The reversal of 31451053 is 35015413.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31451053 - 2⁹ = 31450541 is a prime.

It is a super-3 number, since 3×31451053³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31451033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62401 + ... + 62902.

It is an arithmetic number, because the mean of its divisors is an integer number (7894152).

Almost surely, 2^31451053 is an apocalyptic number.

It is an amenable number.

31451053 is a deficient number, since it is larger than the sum of its proper divisors (125555).

31451053 is a wasteful number, since it uses less digits than its factorization.

31451053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125554.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 31451053 is about 5608.1238395742. The cubic root of 31451053 is about 315.6543147363.

Adding to 31451053 its reverse (35015413), we get a palindrome (66466466).

The spelling of 31451053 in words is "thirty-one million, four hundred fifty-one thousand, fifty-three".