102158741 has 4 divisors (see below), whose sum is σ = 102266892. Its totient is φ = 102050592.

The previous prime is 102158699. The next prime is 102158747. The reversal of 102158741 is 147851201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 147851201 = 2029 ⋅72869.

It can be written as a sum of positive squares in 2 ways, for example, as 12780625 + 89378116 = 3575^2 + 9454^2 .

It is a cyclic number.

It is not a de Polignac number, because 102158741 - 2¹⁰ = 102157717 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 (102158747) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 52646 + ... + 54551.

It is an arithmetic number, because the mean of its divisors is an integer number (25566723).

Almost surely, 2^102158741 is an apocalyptic number.

It is an amenable number.

102158741 is a deficient number, since it is larger than the sum of its proper divisors (108151).

102158741 is an equidigital number, since it uses as much as digits as its factorization.

102158741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108150.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 102158741 is about 10107.3607336436. The cubic root of 102158741 is about 467.4751296024.

The spelling of 102158741 in words is "one hundred two million, one hundred fifty-eight thousand, seven hundred forty-one".