100156426 has 4 divisors (see below), whose sum is σ = 150234642. Its totient is φ = 50078212.

The previous prime is 100156411. The next prime is 100156457. The reversal of 100156426 is 624651001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 74805201 + 25351225 = 8649^2 + 5035^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100156426.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 25039105 + ... + 25039108.

Almost surely, 2^100156426 is an apocalyptic number.

100156426 is the 6330-th centered pentagonal number.

100156426 is a deficient number, since it is larger than the sum of its proper divisors (50078216).

100156426 is an equidigital number, since it uses as much as digits as its factorization.

100156426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50078215.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 100156426 is about 10007.8182437532. The cubic root of 100156426 is about 464.4007790008.

The spelling of 100156426 in words is "one hundred million, one hundred fifty-six thousand, four hundred twenty-six".