102020458 has 8 divisors (see below), whose sum is σ = 153080928. Its totient is φ = 50993484.

The previous prime is 102020453. The next prime is 102020459. The reversal of 102020458 is 854020201.

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

It is not an unprimeable number, because it can be changed into a prime (102020453) 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, 1635 + ... + 14377.

It is an arithmetic number, because the mean of its divisors is an integer number (19135116).

Almost surely, 2^102020458 is an apocalyptic number.

102020458 is a deficient number, since it is larger than the sum of its proper divisors (51060470).

102020458 is a wasteful number, since it uses less digits than its factorization.

102020458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16748.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 102020458 is about 10100.5177095038. The cubic root of 102020458 is about 467.2641081660.

Adding to 102020458 its reverse (854020201), we get a palindrome (956040659).

The spelling of 102020458 in words is "one hundred two million, twenty thousand, four hundred fifty-eight".