101155340 has 96 divisors (see below), whose sum is σ = 252576576. Its totient is φ = 33546240.

The previous prime is 101155331. The next prime is 101155343. The reversal of 101155340 is 43551101.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (101155343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323024 + ... + 323336.

It is an arithmetic number, because the mean of its divisors is an integer number (2631006).

Almost surely, 2^101155340 is an apocalyptic number.

101155340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101155340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126288288).

101155340 is an abundant number, since it is smaller than the sum of its proper divisors (151421236).

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

101155340 is a wasteful number, since it uses less digits than its factorization.

101155340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 101155340 is about 10057.6011056315. The cubic root of 101155340 is about 465.9395809109.

The spelling of 101155340 in words is "one hundred one million, one hundred fifty-five thousand, three hundred forty".