1245543135401 has 8 divisors (see below), whose sum is σ = 1255694115840. Its totient is φ = 1235397523248.

The previous prime is 1245543135379. The next prime is 1245543135413. The reversal of 1245543135401 is 1045313455421.

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 1245543135401 - 2¹⁰ = 1245543134377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1245543132401) 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, 875486 + ... + 1804871.

It is an arithmetic number, because the mean of its divisors is an integer number (156961764480).

Almost surely, 2^{1245543135401} is an apocalyptic number.

It is an amenable number.

1245543135401 is a deficient number, since it is larger than the sum of its proper divisors (10150980439).

1245543135401 is a wasteful number, since it uses less digits than its factorization.

1245543135401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2684143.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 1245543135401 in words is "one trillion, two hundred forty-five billion, five hundred forty-three million, one hundred thirty-five thousand, four hundred one".