1142520197641 has 4 divisors (see below), whose sum is σ = 1142758873872. Its totient is φ = 1142281521412.

The previous prime is 1142520197629. The next prime is 1142520197647. The reversal of 1142520197641 is 1467910252411.

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 1142520197641 - 2⁹ = 1142520197129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142520197647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119330935 + ... + 119340508.

It is an arithmetic number, because the mean of its divisors is an integer number (285689718468).

Almost surely, 2^{1142520197641} is an apocalyptic number.

It is an amenable number.

1142520197641 is a deficient number, since it is larger than the sum of its proper divisors (238676231).

1142520197641 is an equidigital number, since it uses as much as digits as its factorization.

1142520197641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238676230.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 1142520197641 in words is "one trillion, one hundred forty-two billion, five hundred twenty million, one hundred ninety-seven thousand, six hundred forty-one".