1245458545421 has 8 divisors (see below), whose sum is σ = 1311030427200. Its totient is φ = 1179888806880.

The previous prime is 1245458545393. The next prime is 1245458545439.

1245458545421 is nontrivially palindromic in base 10.

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 1245458545421 - 2²⁶ = 1245391436557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1245458545421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245458545321) 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, 734216 + ... + 1740686.

It is an arithmetic number, because the mean of its divisors is an integer number (163878803400).

Almost surely, 2^{1245458545421} is an apocalyptic number.

It is an amenable number.

1245458545421 is a deficient number, since it is larger than the sum of its proper divisors (65571881779).

1245458545421 is a wasteful number, since it uses less digits than its factorization.

1245458545421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071619.

The product of its digits is 5120000, while the sum is 50.

The spelling of 1245458545421 in words is "one trillion, two hundred forty-five billion, four hundred fifty-eight million, five hundred forty-five thousand, four hundred twenty-one".