2145075219091 has 8 divisors (see below), whose sum is σ = 2452784108544. Its totient is φ = 1837683722760.

The previous prime is 2145075219061. The next prime is 2145075219101. The reversal of 2145075219091 is 1909125705412.

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

It is a cyclic number.

It is not a de Polignac number, because 2145075219091 - 2¹³ = 2145075210899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2145075219061) 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, 79333795 + ... + 79360828.

It is an arithmetic number, because the mean of its divisors is an integer number (306598013568).

Almost surely, 2^{2145075219091} is an apocalyptic number.

2145075219091 is a deficient number, since it is larger than the sum of its proper divisors (307708889453).

2145075219091 is a wasteful number, since it uses less digits than its factorization.

2145075219091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158696561.

The product of its (nonzero) digits is 226800, while the sum is 46.

The spelling of 2145075219091 in words is "two trillion, one hundred forty-five billion, seventy-five million, two hundred nineteen thousand, ninety-one".