155345425241 has 4 divisors (see below), whose sum is σ = 155388306432. Its totient is φ = 155302544052.

The previous prime is 155345425187. The next prime is 155345425243. The reversal of 155345425241 is 142524543551.

It is a happy number.

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 155345425241 - 2²² = 155341230937 is a prime.

It is a super-2 number, since 2×155345425241² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155345425243) 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, 21435161 + ... + 21442406.

It is an arithmetic number, because the mean of its divisors is an integer number (38847076608).

Almost surely, 2^155345425241 is an apocalyptic number.

It is an amenable number.

155345425241 is a deficient number, since it is larger than the sum of its proper divisors (42881191).

155345425241 is an equidigital number, since it uses as much as digits as its factorization.

155345425241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42881190.

The product of its digits is 480000, while the sum is 41.

Adding to 155345425241 its reverse (142524543551), we get a palindrome (297869968792).

The spelling of 155345425241 in words is "one hundred fifty-five billion, three hundred forty-five million, four hundred twenty-five thousand, two hundred forty-one".