249000101 has 4 divisors (see below), whose sum is σ = 284571552. Its totient is φ = 213428652.

The previous prime is 249000079. The next prime is 249000127. The reversal of 249000101 is 101000942.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 249000101 - 2¹⁰ = 248999077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 249000101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249000151) 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, 17785715 + ... + 17785728.

It is an arithmetic number, because the mean of its divisors is an integer number (71142888).

Almost surely, 2^249000101 is an apocalyptic number.

It is an amenable number.

249000101 is a deficient number, since it is larger than the sum of its proper divisors (35571451).

249000101 is an equidigital number, since it uses as much as digits as its factorization.

249000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35571450.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 249000101 is about 15779.7370383666. The cubic root of 249000101 is about 629.1195402173.

The spelling of 249000101 in words is "two hundred forty-nine million, one hundred one", and thus it is an aban number.