155434241 has 4 divisors (see below), whose sum is σ = 155464452. Its totient is φ = 155404032.

The previous prime is 155434211. The next prime is 155434259. The reversal of 155434241 is 142434551.

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 149328400 + 6105841 = 12220^2 + 2471^2 .

It is a cyclic number.

It is not a de Polignac number, because 155434241 - 2¹⁰ = 155433217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155434211) 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, 5240 + ... + 18393.

It is an arithmetic number, because the mean of its divisors is an integer number (38866113).

Almost surely, 2^155434241 is an apocalyptic number.

It is an amenable number.

155434241 is a deficient number, since it is larger than the sum of its proper divisors (30211).

155434241 is an equidigital number, since it uses as much as digits as its factorization.

155434241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30210.

The product of its digits is 9600, while the sum is 29.

The square root of 155434241 is about 12467.3269388430. The cubic root of 155434241 is about 537.6697034722.

Adding to 155434241 its reverse (142434551), we get a palindrome (297868792).

The spelling of 155434241 in words is "one hundred fifty-five million, four hundred thirty-four thousand, two hundred forty-one".