100433257 has 8 divisors (see below), whose sum is σ = 101246112. Its totient is φ = 99624000.

The previous prime is 100433243. The next prime is 100433269. The reversal of 100433257 is 752334001.

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

It is a cyclic number.

It is not a de Polignac number, because 100433257 - 2¹⁹ = 99908969 is a prime.

It is a super-2 number, since 2×100433257² = 20173678223256098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100433657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84018 + ... + 85204.

It is an arithmetic number, because the mean of its divisors is an integer number (12655764).

Almost surely, 2^100433257 is an apocalyptic number.

It is an amenable number.

100433257 is a deficient number, since it is larger than the sum of its proper divisors (812855).

100433257 is a wasteful number, since it uses less digits than its factorization.

100433257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 100433257 is about 10021.6394367389. The cubic root of 100433257 is about 464.8282512134.

Adding to 100433257 its reverse (752334001), we get a palindrome (852767258).

The spelling of 100433257 in words is "one hundred million, four hundred thirty-three thousand, two hundred fifty-seven".