100425405 has 16 divisors (see below), whose sum is σ = 166222080. Its totient is φ = 51713088.

The previous prime is 100425397. The next prime is 100425421. The reversal of 100425405 is 504524001.

It is not a de Polignac number, because 100425405 - 2³ = 100425397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114997 + ... + 115866.

It is an arithmetic number, because the mean of its divisors is an integer number (10388880).

Almost surely, 2^100425405 is an apocalyptic number.

100425405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100425405 is a deficient number, since it is larger than the sum of its proper divisors (65796675).

100425405 is a wasteful number, since it uses less digits than its factorization.

100425405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230900.

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

The square root of 100425405 is about 10021.2476768115. The cubic root of 100425405 is about 464.8161372760.

Adding to 100425405 its reverse (504524001), we get a palindrome (604949406).

The spelling of 100425405 in words is "one hundred million, four hundred twenty-five thousand, four hundred five".