101158913 has 4 divisors (see below), whose sum is σ = 102295620. Its totient is φ = 100022208.

The previous prime is 101158879. The next prime is 101158933. The reversal of 101158913 is 319851101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32069569 + 69089344 = 5663^2 + 8312^2 .

It is a cyclic number.

It is not a de Polignac number, because 101158913 - 2¹² = 101154817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101158933) 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, 568220 + ... + 568397.

It is an arithmetic number, because the mean of its divisors is an integer number (25573905).

Almost surely, 2^101158913 is an apocalyptic number.

It is an amenable number.

101158913 is a deficient number, since it is larger than the sum of its proper divisors (1136707).

101158913 is an equidigital number, since it uses as much as digits as its factorization.

101158913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136706.

The product of its (nonzero) digits is 1080, while the sum is 29.

The square root of 101158913 is about 10057.7787309127. The cubic root of 101158913 is about 465.9450668053.

The spelling of 101158913 in words is "one hundred one million, one hundred fifty-eight thousand, nine hundred thirteen".