1142144201 has 16 divisors (see below), whose sum is σ = 1320338880. Its totient is φ = 976442880.

The previous prime is 1142144197. The next prime is 1142144233. The reversal of 1142144201 is 1024412411.

It is a cyclic number.

It is not a de Polignac number, because 1142144201 - 2² = 1142144197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142140201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428210 + ... + 430868.

It is an arithmetic number, because the mean of its divisors is an integer number (82521180).

Almost surely, 2^1142144201 is an apocalyptic number.

1142144201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1142144201 is a deficient number, since it is larger than the sum of its proper divisors (178194679).

1142144201 is a wasteful number, since it uses less digits than its factorization.

1142144201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4984.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1142144201 is about 33795.6239918721. The cubic root of 1142144201 is about 1045.2984659086.

Adding to 1142144201 its reverse (1024412411), we get a palindrome (2166556612).

The spelling of 1142144201 in words is "one billion, one hundred forty-two million, one hundred forty-four thousand, two hundred one".