101772115 has 16 divisors (see below), whose sum is σ = 129820320. Its totient is φ = 76326400.

The previous prime is 101772103. The next prime is 101772133. The reversal of 101772115 is 511277101.

It is not a de Polignac number, because 101772115 - 2⁹ = 101771603 is a prime.

It is a super-3 number, since 3×101772115³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101772115.

It is an unprimeable number.

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, 20640 + ... + 25090.

It is an arithmetic number, because the mean of its divisors is an integer number (8113770).

Almost surely, 2^101772115 is an apocalyptic number.

101772115 is a deficient number, since it is larger than the sum of its proper divisors (28048205).

101772115 is a wasteful number, since it uses less digits than its factorization.

101772115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4742.

The product of its (nonzero) digits is 490, while the sum is 25.

The square root of 101772115 is about 10088.2166412107. The cubic root of 101772115 is about 466.8846546775.

The spelling of 101772115 in words is "one hundred one million, seven hundred seventy-two thousand, one hundred fifteen".