100520426 has 4 divisors (see below), whose sum is σ = 150780642. Its totient is φ = 50260212.

The previous prime is 100520411. The next prime is 100520429. The reversal of 100520426 is 624025001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624025001 = 17 ⋅36707353.

It can be written as a sum of positive squares in only one way, i.e., 97042201 + 3478225 = 9851^2 + 1865^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100520398 and 100520407.

It is not an unprimeable number, because it can be changed into a prime (100520429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25130105 + ... + 25130108.

Almost surely, 2^100520426 is an apocalyptic number.

100520426 is a deficient number, since it is larger than the sum of its proper divisors (50260216).

100520426 is an equidigital number, since it uses as much as digits as its factorization.

100520426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50260215.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 100520426 is about 10025.9875324080. The cubic root of 100520426 is about 464.9626917306.

Adding to 100520426 its reverse (624025001), we get a palindrome (724545427).

The spelling of 100520426 in words is "one hundred million, five hundred twenty thousand, four hundred twenty-six".