1442157101 has 16 divisors (see below), whose sum is σ = 1800135168. Its totient is φ = 1122433200.

The previous prime is 1442157097. The next prime is 1442157131. The reversal of 1442157101 is 1017512441.

It is not a de Polignac number, because 1442157101 - 2² = 1442157097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442157131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57386 + ... + 78596.

It is an arithmetic number, because the mean of its divisors is an integer number (112508448).

Almost surely, 2^1442157101 is an apocalyptic number.

1442157101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1442157101 is a deficient number, since it is larger than the sum of its proper divisors (357978067).

1442157101 is a wasteful number, since it uses less digits than its factorization.

1442157101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22112.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 1442157101 is about 37975.7435871900. The cubic root of 1442157101 is about 1129.8068171597.

Adding to 1442157101 its reverse (1017512441), we get a palindrome (2459669542).

The spelling of 1442157101 in words is "one billion, four hundred forty-two million, one hundred fifty-seven thousand, one hundred one".