31463142 has 16 divisors (see below), whose sum is σ = 63685440. Its totient is φ = 10361192.

The previous prime is 31463137. The next prime is 31463147. The reversal of 31463142 is 24136413.

It is an interprime number because it is at equal distance from previous prime (31463137) and next prime (31463147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31463147) 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, 31092 + ... + 32087.

It is an arithmetic number, because the mean of its divisors is an integer number (3980340).

Almost surely, 2^31463142 is an apocalyptic number.

31463142 is an abundant number, since it is smaller than the sum of its proper divisors (32222298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31463142 is a wasteful number, since it uses less digits than its factorization.

31463142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63267.

The product of its digits is 1728, while the sum is 24.

The square root of 31463142 is about 5609.2015474575. The cubic root of 31463142 is about 315.6947527697.

Adding to 31463142 its reverse (24136413), we get a palindrome (55599555).

The spelling of 31463142 in words is "thirty-one million, four hundred sixty-three thousand, one hundred forty-two".