1142145520000 has 80 divisors (see below), whose sum is σ = 2843300087100. Its totient is φ = 456858176000.

The previous prime is 1142145519971. The next prime is 1142145520027. The reversal of 1142145520000 is 255412411.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7058410 + ... + 7218409.

Almost surely, 2^{1142145520000} is an apocalyptic number.

1142145520000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142145520000 is an abundant number, since it is smaller than the sum of its proper divisors (1701154567100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142145520000 is an frugal number, since it uses more digits than its factorization.

1142145520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14276853 (or 14276826 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The spelling of 1142145520000 in words is "one trillion, one hundred forty-two billion, one hundred forty-five million, five hundred twenty thousand".