1442012155 has 4 divisors (see below), whose sum is σ = 1730414592. Its totient is φ = 1153609720.

The previous prime is 1442012129. The next prime is 1442012179. The reversal of 1442012155 is 5512102441.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1442012155 - 2¹¹ = 1442010107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144201211 + ... + 144201220.

It is an arithmetic number, because the mean of its divisors is an integer number (432603648).

Almost surely, 2^1442012155 is an apocalyptic number.

1442012155 is a deficient number, since it is larger than the sum of its proper divisors (288402437).

1442012155 is an equidigital number, since it uses as much as digits as its factorization.

1442012155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288402436.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1442012155 is about 37973.8351368413. The cubic root of 1442012155 is about 1129.7689649578.

Adding to 1442012155 its reverse (5512102441), we get a palindrome (6954114596).

The spelling of 1442012155 in words is "one billion, four hundred forty-two million, twelve thousand, one hundred fifty-five".