1042156240453 has 4 divisors (see below), whose sum is σ = 1042158641440. Its totient is φ = 1042153839468.

The previous prime is 1042156240429. The next prime is 1042156240483. The reversal of 1042156240453 is 3540426512401.

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 a de Polignac number, because none of the positive numbers 2^k-1042156240453 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 (1042156240483) 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, 347283 + ... + 1484896.

It is an arithmetic number, because the mean of its divisors is an integer number (260539660360).

Almost surely, 2^{1042156240453} is an apocalyptic number.

It is an amenable number.

1042156240453 is a deficient number, since it is larger than the sum of its proper divisors (2400987).

1042156240453 is an equidigital number, since it uses as much as digits as its factorization.

1042156240453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400986.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 1042156240453 in words is "one trillion, forty-two billion, one hundred fifty-six million, two hundred forty thousand, four hundred fifty-three".