31453142 has 16 divisors (see below), whose sum is σ = 54680832. Its totient is φ = 13289640.

The previous prime is 31453141. The next prime is 31453157. The reversal of 31453142 is 24135413.

31453142 is nontrivially palindromic in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31453141) 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, 14828 + ... + 16815.

It is an arithmetic number, because the mean of its divisors is an integer number (3417552).

Almost surely, 2^31453142 is an apocalyptic number.

31453142 is a deficient number, since it is larger than the sum of its proper divisors (23227690).

31453142 is a wasteful number, since it uses less digits than its factorization.

31453142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31723.

The product of its digits is 1440, while the sum is 23.

The square root of 31453142 is about 5608.3100841519. The cubic root of 31453142 is about 315.6613032385.

Adding to 31453142 its reverse (24135413), we get a palindrome (55588555).

The spelling of 31453142 in words is "thirty-one million, four hundred fifty-three thousand, one hundred forty-two".