101239255 has 16 divisors (see below), whose sum is σ = 132681024. Its totient is φ = 73704960.

The previous prime is 101239253. The next prime is 101239279. The reversal of 101239255 is 552932101.

It is not a de Polignac number, because 101239255 - 2¹ = 101239253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101239253) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 6354 + ... + 15583.

It is an arithmetic number, because the mean of its divisors is an integer number (8292564).

Almost surely, 2^101239255 is an apocalyptic number.

101239255 is a deficient number, since it is larger than the sum of its proper divisors (31441769).

101239255 is a wasteful number, since it uses less digits than its factorization.

101239255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22026.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 101239255 is about 10061.7719612402. The cubic root of 101239255 is about 466.0683877971.

The spelling of 101239255 in words is "one hundred one million, two hundred thirty-nine thousand, two hundred fifty-five".