254132040021 has 8 divisors (see below), whose sum is σ = 338901744000. Its totient is φ = 169391848032.

The previous prime is 254132039969. The next prime is 254132040073. The reversal of 254132040021 is 120040231452.

It is an interprime number because it is at equal distance from previous prime (254132039969) and next prime (254132040073).

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

It is not a de Polignac number, because 254132040021 - 2⁶ = 254132039957 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 254132039973 and 254132040000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254132040121) 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, 7357896 + ... + 7392353.

It is an arithmetic number, because the mean of its divisors is an integer number (42362718000).

Almost surely, 2^254132040021 is an apocalyptic number.

It is an amenable number.

254132040021 is a deficient number, since it is larger than the sum of its proper divisors (84769703979).

254132040021 is a wasteful number, since it uses less digits than its factorization.

254132040021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14755995.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 254132040021 its reverse (120040231452), we get a palindrome (374172271473).

The spelling of 254132040021 in words is "two hundred fifty-four billion, one hundred thirty-two million, forty thousand, twenty-one".