101142036 has 36 divisors (see below), whose sum is σ = 257006932. Its totient is φ = 33537024.

The previous prime is 101142029. The next prime is 101142037. The reversal of 101142036 is 630241101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20250000 + 80892036 = 4500^2 + 8994^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×101142036² = 20459422892450592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101142037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 331 + ... + 14226.

Almost surely, 2^101142036 is an apocalyptic number.

It is an amenable number.

101142036 is an abundant number, since it is smaller than the sum of its proper divisors (155864896).

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

101142036 is a wasteful number, since it uses less digits than its factorization.

101142036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14760 (or 14755 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 101142036 is about 10056.9396935648. The cubic root of 101142036 is about 465.9191531478.

Adding to 101142036 its reverse (630241101), we get a palindrome (731383137).

The spelling of 101142036 in words is "one hundred one million, one hundred forty-two thousand, thirty-six".