100051249 has 4 divisors (see below), whose sum is σ = 100431936. Its totient is φ = 99670564.

The previous prime is 100051243. The next prime is 100051267. The reversal of 100051249 is 942150001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 942150001 = 13 ⋅72473077.

It is a cyclic number.

It is not a de Polignac number, because 100051249 - 2⁹ = 100050737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100051243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189949 + ... + 190474.

It is an arithmetic number, because the mean of its divisors is an integer number (25107984).

Almost surely, 2^100051249 is an apocalyptic number.

It is an amenable number.

100051249 is a deficient number, since it is larger than the sum of its proper divisors (380687).

100051249 is an equidigital number, since it uses as much as digits as its factorization.

100051249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380686.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 100051249 is about 10002.5621217766. The cubic root of 100051249 is about 464.2381620817.

The spelling of 100051249 in words is "one hundred million, fifty-one thousand, two hundred forty-nine".