101249894 has 4 divisors (see below), whose sum is σ = 151874844. Its totient is φ = 50624946.

The previous prime is 101249873. The next prime is 101249903. The reversal of 101249894 is 498942101.

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

It is a super-2 number, since 2×101249894² = 20503082070022472, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25312472 + ... + 25312475.

It is an arithmetic number, because the mean of its divisors is an integer number (37968711).

Almost surely, 2^101249894 is an apocalyptic number.

101249894 is a deficient number, since it is larger than the sum of its proper divisors (50624950).

101249894 is an equidigital number, since it uses as much as digits as its factorization.

101249894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50624949.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 101249894 is about 10062.3006315653. The cubic root of 101249894 is about 466.0847132428.

The spelling of 101249894 in words is "one hundred one million, two hundred forty-nine thousand, eight hundred ninety-four".