155241101 has 4 divisors (see below), whose sum is σ = 155325600. Its totient is φ = 155156604.

The previous prime is 155241091. The next prime is 155241103. The reversal of 155241101 is 101142551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101142551 = 1571 ⋅64381.

It is a cyclic number.

It is not a de Polignac number, because 155241101 - 2¹⁴ = 155224717 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 (155241103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39431 + ... + 43188.

It is an arithmetic number, because the mean of its divisors is an integer number (38831400).

Almost surely, 2^155241101 is an apocalyptic number.

It is an amenable number.

155241101 is a deficient number, since it is larger than the sum of its proper divisors (84499).

155241101 is an equidigital number, since it uses as much as digits as its factorization.

155241101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84498.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 155241101 is about 12459.5786846907. The cubic root of 155241101 is about 537.4469113602.

Adding to 155241101 its reverse (101142551), we get a palindrome (256383652).

The spelling of 155241101 in words is "one hundred fifty-five million, two hundred forty-one thousand, one hundred one".