155501041 has 2 divisors, whose sum is σ = 155501042. Its totient is φ = 155501040.

The previous prime is 155501039. The next prime is 155501063. The reversal of 155501041 is 140105551.

It is a happy number.

It is an a-pointer prime, because the next prime (155501063) can be obtained adding 155501041 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97436641 + 58064400 = 9871^2 + 7620^2 .

It is a cyclic number.

It is not a de Polignac number, because 155501041 - 2¹ = 155501039 is a prime.

Together with 155501039, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (155501011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77750520 + 77750521.

It is an arithmetic number, because the mean of its divisors is an integer number (77750521).

Almost surely, 2^155501041 is an apocalyptic number.

It is an amenable number.

155501041 is a deficient number, since it is larger than the sum of its proper divisors (1).

155501041 is an equidigital number, since it uses as much as digits as its factorization.

155501041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 155501041 is about 12470.0056535673. The cubic root of 155501041 is about 537.7467160875.

Adding to 155501041 its reverse (140105551), we get a palindrome (295606592).

The spelling of 155501041 in words is "one hundred fifty-five million, five hundred one thousand, forty-one".