1442272031 has 4 divisors (see below), whose sum is σ = 1442355600. Its totient is φ = 1442188464.

The previous prime is 1442272009. The next prime is 1442272037. The reversal of 1442272031 is 1302722441.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442272031 is a prime.

It is a super-2 number, since 2×1442272031² = 4160297222809729922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442272037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5246 + ... + 53963.

It is an arithmetic number, because the mean of its divisors is an integer number (360588900).

Almost surely, 2^1442272031 is an apocalyptic number.

1442272031 is a deficient number, since it is larger than the sum of its proper divisors (83569).

1442272031 is an equidigital number, since it uses as much as digits as its factorization.

1442272031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83568.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 1442272031 is about 37977.2567598030. The cubic root of 1442272031 is about 1129.8368289729.

Adding to 1442272031 its reverse (1302722441), we get a palindrome (2744994472).

The spelling of 1442272031 in words is "one billion, four hundred forty-two million, two hundred seventy-two thousand, thirty-one".