101521887 has 8 divisors (see below), whose sum is σ = 135419520. Its totient is φ = 67652760.

The previous prime is 101521879. The next prime is 101521913. The reversal of 101521887 is 788125101.

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

It is not a de Polignac number, because 101521887 - 2³ = 101521879 is a prime.

It is a super-3 number, since 3×101521887³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101521087) 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, 3414 + ... + 14652.

It is an arithmetic number, because the mean of its divisors is an integer number (16927440).

Almost surely, 2^101521887 is an apocalyptic number.

101521887 is a deficient number, since it is larger than the sum of its proper divisors (33897633).

101521887 is a wasteful number, since it uses less digits than its factorization.

101521887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14253.

The product of its (nonzero) digits is 4480, while the sum is 33.

The square root of 101521887 is about 10075.8070148252. The cubic root of 101521887 is about 466.5016961669.

Adding to 101521887 its reverse (788125101), we get a palindrome (889646988).

The spelling of 101521887 in words is "one hundred one million, five hundred twenty-one thousand, eight hundred eighty-seven".