1142744101 has 8 divisors (see below), whose sum is σ = 1184006880. Its totient is φ = 1101605232.

The previous prime is 1142744089. The next prime is 1142744111. The reversal of 1142744101 is 1014472411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1142744101 - 2¹¹ = 1142742053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142744111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11995 + ... + 49288.

It is an arithmetic number, because the mean of its divisors is an integer number (148000860).

Almost surely, 2^1142744101 is an apocalyptic number.

It is an amenable number.

1142744101 is a deficient number, since it is larger than the sum of its proper divisors (41262779).

1142744101 is an equidigital number, since it uses as much as digits as its factorization.

1142744101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61955.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 1142744101 is about 33804.4982361815. The cubic root of 1142744101 is about 1045.4814447867.

The spelling of 1142744101 in words is "one billion, one hundred forty-two million, seven hundred forty-four thousand, one hundred one".