101155613 has 8 divisors (see below), whose sum is σ = 109312728. Its totient is φ = 93052224.

The previous prime is 101155603. The next prime is 101155619. The reversal of 101155613 is 316551101.

It can be written as a sum of positive squares in 4 ways, for example, as 19035769 + 82119844 = 4363^2 + 9062^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101155613 - 2¹⁴ = 101139229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101155619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9470 + ... + 17087.

It is an arithmetic number, because the mean of its divisors is an integer number (13664091).

Almost surely, 2^101155613 is an apocalyptic number.

101155613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

101155613 is a deficient number, since it is larger than the sum of its proper divisors (8157115).

101155613 is a wasteful number, since it uses less digits than its factorization.

101155613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26863.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 101155613 is about 10057.6146774471. The cubic root of 101155613 is about 465.9400000728.

The spelling of 101155613 in words is "one hundred one million, one hundred fifty-five thousand, six hundred thirteen".