102154420043045 has 8 divisors (see below), whose sum is σ = 122585414143896. Its totient is φ = 81723462639616.

The previous prime is 102154420043029. The next prime is 102154420043087. The reversal of 102154420043045 is 540340024451201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1798243452196 + 100356176590849 = 1340986^2 + 10017793^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 102154420043045 - 2⁴ = 102154420043029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102154420042996 and 102154420043014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2625212 + ... + 14532741.

It is an arithmetic number, because the mean of its divisors is an integer number (15323176767987).

Almost surely, 2^{102154420043045} is an apocalyptic number.

It is an amenable number.

102154420043045 is a deficient number, since it is larger than the sum of its proper divisors (20430994100851).

102154420043045 is a wasteful number, since it uses less digits than its factorization.

102154420043045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18348711.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 102154420043045 its reverse (540340024451201), we get a palindrome (642494444494246).

The spelling of 102154420043045 in words is "one hundred two trillion, one hundred fifty-four billion, four hundred twenty million, forty-three thousand, forty-five".