101142249 has 8 divisors (see below), whose sum is σ = 145229952. Its totient is φ = 62241360.

The previous prime is 101142241. The next prime is 101142253. The reversal of 101142249 is 942241101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101142249 - 2³ = 101142241 is a prime.

It is a super-3 number, since 3×101142249³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (101142241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1296657 + ... + 1296734.

It is an arithmetic number, because the mean of its divisors is an integer number (18153744).

Almost surely, 2^101142249 is an apocalyptic number.

It is an amenable number.

101142249 is a deficient number, since it is larger than the sum of its proper divisors (44087703).

101142249 is a wasteful number, since it uses less digits than its factorization.

101142249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593407.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 101142249 is about 10056.9502832618. The cubic root of 101142249 is about 465.9194802150.

The spelling of 101142249 in words is "one hundred one million, one hundred forty-two thousand, two hundred forty-nine".