31442119 has 8 divisors (see below), whose sum is σ = 33406560. Its totient is φ = 29536416.

The previous prime is 31442113. The next prime is 31442141. The reversal of 31442119 is 91124413.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 31442119 - 2³ = 31442111 is a prime.

It is a super-2 number, since 2×31442119² = 1977213694420322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31442093 and 31442102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31442111) 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, 13579 + ... + 15724.

It is an arithmetic number, because the mean of its divisors is an integer number (4175820).

Almost surely, 2^31442119 is an apocalyptic number.

31442119 is a deficient number, since it is larger than the sum of its proper divisors (1964441).

31442119 is a wasteful number, since it uses less digits than its factorization.

31442119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29369.

The product of its digits is 864, while the sum is 25.

The square root of 31442119 is about 5607.3272599341. The cubic root of 31442119 is about 315.6244236045.

The spelling of 31442119 in words is "thirty-one million, four hundred forty-two thousand, one hundred nineteen".