101387505 has 8 divisors (see below), whose sum is σ = 162220032. Its totient is φ = 54073328.

The previous prime is 101387491. The next prime is 101387521. The reversal of 101387505 is 505783101.

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 101387505 - 2⁶ = 101387441 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3379569 + ... + 3379598.

It is an arithmetic number, because the mean of its divisors is an integer number (20277504).

Almost surely, 2^101387505 is an apocalyptic number.

101387505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101387505 is a deficient number, since it is larger than the sum of its proper divisors (60832527).

101387505 is an equidigital number, since it uses as much as digits as its factorization.

101387505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6759175.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 101387505 is about 10069.1362588854. The cubic root of 101387505 is about 466.2957730460.

The spelling of 101387505 in words is "one hundred one million, three hundred eighty-seven thousand, five hundred five".