155052541 has 4 divisors (see below), whose sum is σ = 177202912. Its totient is φ = 132902172.

The previous prime is 155052503. The next prime is 155052551. The reversal of 155052541 is 145250551.

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: 145250551 = 137 ⋅1060223.

It is a cyclic number.

It is not a de Polignac number, because 155052541 - 2¹³ = 155044349 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 (155052551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11075175 + ... + 11075188.

It is an arithmetic number, because the mean of its divisors is an integer number (44300728).

Almost surely, 2^155052541 is an apocalyptic number.

It is an amenable number.

155052541 is a deficient number, since it is larger than the sum of its proper divisors (22150371).

155052541 is an equidigital number, since it uses as much as digits as its factorization.

155052541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22150370.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 155052541 is about 12452.0095165399. The cubic root of 155052541 is about 537.2292240614.

The spelling of 155052541 in words is "one hundred fifty-five million, fifty-two thousand, five hundred forty-one".