155242041 has 4 divisors (see below), whose sum is σ = 206989392. Its totient is φ = 103494692.

The previous prime is 155242037. The next prime is 155242049. The reversal of 155242041 is 140242551.

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.

It is a cyclic number.

It is not a de Polignac number, because 155242041 - 2² = 155242037 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155242049) 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, 25873671 + ... + 25873676.

It is an arithmetic number, because the mean of its divisors is an integer number (51747348).

Almost surely, 2^155242041 is an apocalyptic number.

It is an amenable number.

155242041 is a deficient number, since it is larger than the sum of its proper divisors (51747351).

155242041 is an equidigital number, since it uses as much as digits as its factorization.

155242041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51747350.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 155242041 is about 12459.6164066154. The cubic root of 155242041 is about 537.4479961225.

Adding to 155242041 its reverse (140242551), we get a palindrome (295484592).

The spelling of 155242041 in words is "one hundred fifty-five million, two hundred forty-two thousand, forty-one".