1455540100215 has 24 divisors (see below), whose sum is σ = 2473914530640. Its totient is φ = 730624048128.

The previous prime is 1455540100207. The next prime is 1455540100219. The reversal of 1455540100215 is 5120010455541.

It is a happy number.

It is not a de Polignac number, because 1455540100215 - 2³ = 1455540100207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1455540100219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167878030 + ... + 167886699.

It is an arithmetic number, because the mean of its divisors is an integer number (103079772110).

Almost surely, 2^{1455540100215} is an apocalyptic number.

1455540100215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1455540100215 is a deficient number, since it is larger than the sum of its proper divisors (1018374430425).

1455540100215 is a wasteful number, since it uses less digits than its factorization.

1455540100215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335764771 (or 335764754 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 33.

Adding to 1455540100215 its reverse (5120010455541), we get a palindrome (6575550555756).

The spelling of 1455540100215 in words is "one trillion, four hundred fifty-five billion, five hundred forty million, one hundred thousand, two hundred fifteen".