2145204513129 has 8 divisors (see below), whose sum is σ = 3010813351840. Its totient is φ = 1354866008256.

The previous prime is 2145204513121. The next prime is 2145204513191. The reversal of 2145204513129 is 9213154025412.

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

It is not a de Polignac number, because 2145204513129 - 2³ = 2145204513121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145204513121) 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, 18817583392 + ... + 18817583505.

It is an arithmetic number, because the mean of its divisors is an integer number (376351668980).

Almost surely, 2^{2145204513129} is an apocalyptic number.

It is an amenable number.

2145204513129 is a deficient number, since it is larger than the sum of its proper divisors (865608838711).

2145204513129 is a wasteful number, since it uses less digits than its factorization.

2145204513129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37635166919.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 2145204513129 in words is "two trillion, one hundred forty-five billion, two hundred four million, five hundred thirteen thousand, one hundred twenty-nine".