1442641155 has 32 divisors (see below), whose sum is σ = 2385918720. Its totient is φ = 743940480.

The previous prime is 1442641153. The next prime is 1442641157. The reversal of 1442641155 is 5511462441.

It is an interprime number because it is at equal distance from previous prime (1442641153) and next prime (1442641157).

It is not a de Polignac number, because 1442641155 - 2¹ = 1442641153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1442641153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40624 + ... + 67346.

It is an arithmetic number, because the mean of its divisors is an integer number (74559960).

Almost surely, 2^1442641155 is an apocalyptic number.

1442641155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1442641155 is a deficient number, since it is larger than the sum of its proper divisors (943277565).

1442641155 is a wasteful number, since it uses less digits than its factorization.

1442641155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26851.

The product of its digits is 19200, while the sum is 33.

The square root of 1442641155 is about 37982.1162522575. The cubic root of 1442641155 is about 1129.9332079977.

The spelling of 1442641155 in words is "one billion, four hundred forty-two million, six hundred forty-one thousand, one hundred fifty-five".