101340540 has 72 divisors (see below), whose sum is σ = 351318240. Its totient is φ = 23163264.

The previous prime is 101340511. The next prime is 101340559. The reversal of 101340540 is 45043101.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38955 + ... + 41474.

It is an arithmetic number, because the mean of its divisors is an integer number (4879420).

Almost surely, 2^101340540 is an apocalyptic number.

101340540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101340540 is an abundant number, since it is smaller than the sum of its proper divisors (249977700).

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

101340540 is a wasteful number, since it uses less digits than its factorization.

101340540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80451 (or 80446 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 101340540 is about 10066.8038621998. The cubic root of 101340540 is about 466.2237623207.

Adding to 101340540 its reverse (45043101), we get a palindrome (146383641).

The spelling of 101340540 in words is "one hundred one million, three hundred forty thousand, five hundred forty".