101544012 has 18 divisors (see below), whose sum is σ = 256680788. Its totient is φ = 33847992.

The previous prime is 101543983. The next prime is 101544019. The reversal of 101544012 is 210445101.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×101544012² = 20622372746112288, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (101544019) 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 5 ways as a sum of consecutive naturals, for example, 1410298 + ... + 1410369.

Almost surely, 2^101544012 is an apocalyptic number.

101544012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101544012 is an abundant number, since it is smaller than the sum of its proper divisors (155136776).

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

101544012 is a wasteful number, since it uses less digits than its factorization.

101544012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820677 (or 2820672 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 101544012 is about 10076.9048819566. The cubic root of 101544012 is about 466.5355824570.

Adding to 101544012 its reverse (210445101), we get a palindrome (311989113).

The spelling of 101544012 in words is "one hundred one million, five hundred forty-four thousand, twelve".