2145253003455 has 32 divisors (see below), whose sum is σ = 3459126988800. Its totient is φ = 1135237203072.

The previous prime is 2145253003429. The next prime is 2145253003493. The reversal of 2145253003455 is 5543003525412.

It is not a de Polignac number, because 2145253003455 - 2¹² = 2145252999359 is a prime.

It is a super-2 number, since 2×2145253003455² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3262242 + ... + 3864288.

It is an arithmetic number, because the mean of its divisors is an integer number (108097718400).

Almost surely, 2^{2145253003455} is an apocalyptic number.

2145253003455 is a deficient number, since it is larger than the sum of its proper divisors (1313873985345).

2145253003455 is a wasteful number, since it uses less digits than its factorization.

2145253003455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603903.

The product of its (nonzero) digits is 360000, while the sum is 39.

Adding to 2145253003455 its reverse (5543003525412), we get a palindrome (7688256528867).

The spelling of 2145253003455 in words is "two trillion, one hundred forty-five billion, two hundred fifty-three million, three thousand, four hundred fifty-five".