2100054465 has 32 divisors (see below), whose sum is σ = 3735705600. Its totient is φ = 1119346560.

The previous prime is 2100054461. The next prime is 2100054469. The reversal of 2100054465 is 5644500012.

2100054465 is a `hidden beast` number, since 210 + 0 + 0 + 5 + 446 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (2100054461) and next prime (2100054469).

It is not a de Polignac number, because 2100054465 - 2² = 2100054461 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2100054461) 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, 281301 + ... + 288669.

It is an arithmetic number, because the mean of its divisors is an integer number (116740800).

Almost surely, 2^2100054465 is an apocalyptic number.

It is an amenable number.

2100054465 is a deficient number, since it is larger than the sum of its proper divisors (1635651135).

2100054465 is a wasteful number, since it uses less digits than its factorization.

2100054465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9494 (or 9488 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2100054465 is about 45826.3512075749. The cubic root of 2100054465 is about 1280.5902358036.

Adding to 2100054465 its reverse (5644500012), we get a palindrome (7744554477).

The spelling of 2100054465 in words is "two billion, one hundred million, fifty-four thousand, four hundred sixty-five".