101941780 has 12 divisors (see below), whose sum is σ = 214077780. Its totient is φ = 40776704.

The previous prime is 101941769. The next prime is 101941781. The reversal of 101941780 is 87149101.

It can be written as a sum of positive squares in 2 ways, for example, as 21049744 + 80892036 = 4588^2 + 8994^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101941781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2548525 + ... + 2548564.

It is an arithmetic number, because the mean of its divisors is an integer number (17839815).

Almost surely, 2^101941780 is an apocalyptic number.

101941780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101941780 is an abundant number, since it is smaller than the sum of its proper divisors (112136000).

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

101941780 is a wasteful number, since it uses less digits than its factorization.

101941780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097098 (or 5097096 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 101941780 is about 10096.6222074514. The cubic root of 101941780 is about 467.1439595184.

The spelling of 101941780 in words is "one hundred one million, nine hundred forty-one thousand, seven hundred eighty".