2005140454 has 8 divisors (see below), whose sum is σ = 3008418768. Its totient is φ = 1002334200.

The previous prime is 2005140427. The next prime is 2005140479. The reversal of 2005140454 is 4540415002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2005140454² = 8041176480534652232, which 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 3 ways as a sum of consecutive naturals, for example, 107197 + ... + 124504.

It is an arithmetic number, because the mean of its divisors is an integer number (376052346).

Almost surely, 2^2005140454 is an apocalyptic number.

2005140454 is a deficient number, since it is larger than the sum of its proper divisors (1003278314).

2005140454 is a wasteful number, since it uses less digits than its factorization.

2005140454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236030.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2005140454 is about 44778.7946912375. The cubic root of 2005140454 is about 1260.9995541218. Note that the first 3 decimals are identical.

Adding to 2005140454 its reverse (4540415002), we get a palindrome (6545555456).

The spelling of 2005140454 in words is "two billion, five million, one hundred forty thousand, four hundred fifty-four".