102654641 has 4 divisors (see below), whose sum is σ = 103651392. Its totient is φ = 101657892.

The previous prime is 102654557. The next prime is 102654659. The reversal of 102654641 is 146456201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146456201 = 3259 ⋅44939.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102654641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102654691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498221 + ... + 498426.

It is an arithmetic number, because the mean of its divisors is an integer number (25912848).

Almost surely, 2^102654641 is an apocalyptic number.

It is an amenable number.

102654641 is a deficient number, since it is larger than the sum of its proper divisors (996751).

102654641 is an equidigital number, since it uses as much as digits as its factorization.

102654641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996750.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 102654641 is about 10131.8626619196. The cubic root of 102654641 is about 468.2303164823.

The spelling of 102654641 in words is "one hundred two million, six hundred fifty-four thousand, six hundred forty-one".