1145357144421 has 8 divisors (see below), whose sum is σ = 1745306124864. Its totient is φ = 654489796800.

The previous prime is 1145357144413. The next prime is 1145357144471. The reversal of 1145357144421 is 1244417535411.

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

It is not a de Polignac number, because 1145357144421 - 2³ = 1145357144413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145357144401) 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, 27270408180 + ... + 27270408221.

It is an arithmetic number, because the mean of its divisors is an integer number (218163265608).

Almost surely, 2^{1145357144421} is an apocalyptic number.

It is an amenable number.

1145357144421 is a deficient number, since it is larger than the sum of its proper divisors (599948980443).

1145357144421 is an equidigital number, since it uses as much as digits as its factorization.

1145357144421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54540816411.

The product of its digits is 268800, while the sum is 42.

The spelling of 1145357144421 in words is "one trillion, one hundred forty-five billion, three hundred fifty-seven million, one hundred forty-four thousand, four hundred twenty-one".