101252539 has 8 divisors (see below), whose sum is σ = 106729280. Its totient is φ = 95790600.

The previous prime is 101252531. The next prime is 101252549. The reversal of 101252539 is 935252101.

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

It is a cyclic number.

It is not a de Polignac number, because 101252539 - 2³ = 101252531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101252531) 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, 12124 + ... + 18694.

It is an arithmetic number, because the mean of its divisors is an integer number (13341160).

Almost surely, 2^101252539 is an apocalyptic number.

101252539 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

101252539 is a deficient number, since it is larger than the sum of its proper divisors (5476741).

101252539 is an equidigital number, since it uses as much as digits as its factorization.

101252539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7401.

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

The square root of 101252539 is about 10062.4320618825. The cubic root of 101252539 is about 466.0887717930.

The spelling of 101252539 in words is "one hundred one million, two hundred fifty-two thousand, five hundred thirty-nine".