2104512501 has 32 divisors (see below), whose sum is σ = 3656717568. Its totient is φ = 1044771840.

The previous prime is 2104512481. The next prime is 2104512503. The reversal of 2104512501 is 1052154012.

It is not a de Polignac number, because 2104512501 - 2⁶ = 2104512437 is a prime.

It is a super-3 number, since 3×2104512501³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104512503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 222090 + ... + 231371.

It is an arithmetic number, because the mean of its divisors is an integer number (114272424).

Almost surely, 2^2104512501 is an apocalyptic number.

2104512501 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2104512501 is a deficient number, since it is larger than the sum of its proper divisors (1552205067).

2104512501 is a wasteful number, since it uses less digits than its factorization.

2104512501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453501.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2104512501 is about 45874.9659509410. The cubic root of 2104512501 is about 1281.4957492174.

Adding to 2104512501 its reverse (1052154012), we get a palindrome (3156666513).

It can be divided in two parts, 2104 and 512501, that added together give a triangular number (514605 = T₁₀₁₄).

The spelling of 2104512501 in words is "two billion, one hundred four million, five hundred twelve thousand, five hundred one".