2145504401 has 8 divisors (see below), whose sum is σ = 2169504000. Its totient is φ = 2121578128.

The previous prime is 2145504367. The next prime is 2145504409. The reversal of 2145504401 is 1044055412.

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 2145504401 - 2³⁰ = 1071762577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145504409) 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, 41600 + ... + 77598.

It is an arithmetic number, because the mean of its divisors is an integer number (271188000).

Almost surely, 2^2145504401 is an apocalyptic number.

It is an amenable number.

2145504401 is a deficient number, since it is larger than the sum of its proper divisors (23999599).

2145504401 is a wasteful number, since it uses less digits than its factorization.

2145504401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36663.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2145504401 is about 46319.5898189956. The cubic root of 2145504401 is about 1289.7626711207.

Adding to 2145504401 its reverse (1044055412), we get a palindrome (3189559813).

The spelling of 2145504401 in words is "two billion, one hundred forty-five million, five hundred four thousand, four hundred one".