155404041 has 32 divisors (see below), whose sum is σ = 227525760. Its totient is φ = 93778944.

The previous prime is 155404001. The next prime is 155404061. The reversal of 155404041 is 140404551.

It is a happy number.

It is not a de Polignac number, because 155404041 - 2¹⁵ = 155371273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155404001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 788755 + ... + 788951.

It is an arithmetic number, because the mean of its divisors is an integer number (7110180).

Almost surely, 2^155404041 is an apocalyptic number.

It is an amenable number.

155404041 is a deficient number, since it is larger than the sum of its proper divisors (72121719).

155404041 is a wasteful number, since it uses less digits than its factorization.

155404041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505.

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

The square root of 155404041 is about 12466.1157142071. The cubic root of 155404041 is about 537.6348791489.

Adding to 155404041 its reverse (140404551), we get a palindrome (295808592).

The spelling of 155404041 in words is "one hundred fifty-five million, four hundred four thousand, forty-one".