101515242 has 16 divisors (see below), whose sum is σ = 203919840. Its totient is φ = 33690192.

The previous prime is 101515241. The next prime is 101515243. The reversal of 101515242 is 242515101.

It is an interprime number because it is at equal distance from previous prime (101515241) and next prime (101515243).

It is not an unprimeable number, because it can be changed into a prime (101515241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35568 + ... + 38315.

It is an arithmetic number, because the mean of its divisors is an integer number (12744990).

Almost surely, 2^101515242 is an apocalyptic number.

101515242 is an abundant number, since it is smaller than the sum of its proper divisors (102404598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101515242 is a wasteful number, since it uses less digits than its factorization.

101515242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74117.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 101515242 is about 10075.4772591674. The cubic root of 101515242 is about 466.4915178316.

The spelling of 101515242 in words is "one hundred one million, five hundred fifteen thousand, two hundred forty-two".