100404525 has 96 divisors (see below), whose sum is σ = 191237760. Its totient is φ = 46126080.

The previous prime is 100404523. The next prime is 100404539. The reversal of 100404525 is 525404001.

It is not a de Polignac number, because 100404525 - 2¹ = 100404523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100404523) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1498542 + ... + 1498608.

It is an arithmetic number, because the mean of its divisors is an integer number (1992060).

Almost surely, 2^100404525 is an apocalyptic number.

100404525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100404525 is a deficient number, since it is larger than the sum of its proper divisors (90833235).

100404525 is a wasteful number, since it uses less digits than its factorization.

100404525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 100404525 is about 10020.2058362092. The cubic root of 100404525 is about 464.7839208807.

Adding to 100404525 its reverse (525404001), we get a palindrome (625808526).

The spelling of 100404525 in words is "one hundred million, four hundred four thousand, five hundred twenty-five".