101420544 has 40 divisors (see below), whose sum is σ = 270194760. Its totient is φ = 33806336.

The previous prime is 101420507. The next prime is 101420567. The reversal of 101420544 is 445024101.

It is a happy number.

It is a super-2 number, since 2×101420544² = 20572253490511872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101420544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31479 + ... + 34550.

It is an arithmetic number, because the mean of its divisors is an integer number (6754869).

Almost surely, 2^101420544 is an apocalyptic number.

It is an amenable number.

101420544 is an abundant number, since it is smaller than the sum of its proper divisors (168774216).

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

101420544 is an frugal number, since it uses more digits than its factorization.

101420544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66050 (or 66034 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 101420544 is about 10070.7767327054. The cubic root of 101420544 is about 466.3464179222.

Adding to 101420544 its reverse (445024101), we get a palindrome (546444645).

The spelling of 101420544 in words is "one hundred one million, four hundred twenty thousand, five hundred forty-four".