155402041 has 2 divisors, whose sum is σ = 155402042. Its totient is φ = 155402040.

The previous prime is 155402029. The next prime is 155402057. The reversal of 155402041 is 140204551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100701225 + 54700816 = 10035^2 + 7396^2 .

It is a cyclic number.

It is not a de Polignac number, because 155402041 - 2¹⁹ = 154877753 is a prime.

It is not a weakly prime, because it can be changed into another prime (155402141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77701020 + 77701021.

It is an arithmetic number, because the mean of its divisors is an integer number (77701021).

Almost surely, 2^155402041 is an apocalyptic number.

It is an amenable number.

155402041 is a deficient number, since it is larger than the sum of its proper divisors (1).

155402041 is an equidigital number, since it uses as much as digits as its factorization.

155402041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 155402041 is about 12466.0354965001. The cubic root of 155402041 is about 537.6325727430.

Adding to 155402041 its reverse (140204551), we get a palindrome (295606592).

The spelling of 155402041 in words is "one hundred fifty-five million, four hundred two thousand, forty-one".