102126404 has 24 divisors (see below), whose sum is σ = 182303520. Its totient is φ = 50045184.

The previous prime is 102126391. The next prime is 102126407. The reversal of 102126404 is 404621201.

It is not an unprimeable number, because it can be changed into a prime (102126407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151412 + ... + 152084.

It is an arithmetic number, because the mean of its divisors is an integer number (7595980).

Almost surely, 2^102126404 is an apocalyptic number.

It is an amenable number.

102126404 is a deficient number, since it is larger than the sum of its proper divisors (80177116).

102126404 is a wasteful number, since it uses less digits than its factorization.

102126404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379 (or 1377 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 102126404 is about 10105.7609312708. The cubic root of 102126404 is about 467.4258000381.

Adding to 102126404 its reverse (404621201), we get a palindrome (506747605).

The spelling of 102126404 in words is "one hundred two million, one hundred twenty-six thousand, four hundred four".