2115142554 has 16 divisors (see below), whose sum is σ = 4834611648. Its totient is φ = 604326432.

The previous prime is 2115142553. The next prime is 2115142559. The reversal of 2115142554 is 4552415112.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2115142553) 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, 25180227 + ... + 25180310.

It is an arithmetic number, because the mean of its divisors is an integer number (302163228).

Almost surely, 2^2115142554 is an apocalyptic number.

2115142554 is an abundant number, since it is smaller than the sum of its proper divisors (2719469094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2115142554 is a wasteful number, since it uses less digits than its factorization.

2115142554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50360549.

The product of its digits is 8000, while the sum is 30.

The square root of 2115142554 is about 45990.6789904215. The cubic root of 2115142554 is about 1283.6497707941.

Adding to 2115142554 its reverse (4552415112), we get a palindrome (6667557666).

The spelling of 2115142554 in words is "two billion, one hundred fifteen million, one hundred forty-two thousand, five hundred fifty-four".