102021454 has 16 divisors (see below), whose sum is σ = 162813456. Its totient is φ = 47779200.

The previous prime is 102021433. The next prime is 102021461. The reversal of 102021454 is 454120201.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 64 + ... + 14284.

It is an arithmetic number, because the mean of its divisors is an integer number (10175841).

Almost surely, 2^102021454 is an apocalyptic number.

102021454 is a deficient number, since it is larger than the sum of its proper divisors (60792002).

102021454 is a wasteful number, since it uses less digits than its factorization.

102021454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14451.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 102021454 is about 10100.5670137869. The cubic root of 102021454 is about 467.2656287549.

Adding to 102021454 its reverse (454120201), we get a palindrome (556141655).

The spelling of 102021454 in words is "one hundred two million, twenty-one thousand, four hundred fifty-four".