102020254 has 24 divisors (see below), whose sum is σ = 178400880. Its totient is φ = 43628256.

The previous prime is 102020251. The next prime is 102020273. The reversal of 102020254 is 452020201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020251) 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 11 ways as a sum of consecutive naturals, for example, 62602 + ... + 64210.

It is an arithmetic number, because the mean of its divisors is an integer number (7433370).

Almost surely, 2^102020254 is an apocalyptic number.

102020254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

102020254 is a deficient number, since it is larger than the sum of its proper divisors (76380626).

102020254 is a wasteful number, since it uses less digits than its factorization.

102020254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272 (or 2265 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 102020254 is about 10100.5076110065. The cubic root of 102020254 is about 467.2637967189.

Adding to 102020254 its reverse (452020201), we get a palindrome (554040455).

The spelling of 102020254 in words is "one hundred two million, twenty thousand, two hundred fifty-four".