1142745101 has 4 divisors (see below), whose sum is σ = 1202889600. Its totient is φ = 1082600604.

The previous prime is 1142745091. The next prime is 1142745113. The reversal of 1142745101 is 1015472411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1142745101 - 2²² = 1138550797 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 (1142745161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30072221 + ... + 30072258.

It is an arithmetic number, because the mean of its divisors is an integer number (300722400).

Almost surely, 2^1142745101 is an apocalyptic number.

It is an amenable number.

1142745101 is a deficient number, since it is larger than the sum of its proper divisors (60144499).

1142745101 is an equidigital number, since it uses as much as digits as its factorization.

1142745101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60144498.

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

The square root of 1142745101 is about 33804.5130271093. The cubic root of 1142745101 is about 1045.4817497489.

The spelling of 1142745101 in words is "one billion, one hundred forty-two million, seven hundred forty-five thousand, one hundred one".