155035401 has 4 divisors (see below), whose sum is σ = 206713872. Its totient is φ = 103356932.

The previous prime is 155035399. The next prime is 155035411. The reversal of 155035401 is 104530551.

155035401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 104530551 = 3 ⋅34843517.

It is a cyclic number.

It is not a de Polignac number, because 155035401 - 2¹ = 155035399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155035411) 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, 25839231 + ... + 25839236.

It is an arithmetic number, because the mean of its divisors is an integer number (51678468).

Almost surely, 2^155035401 is an apocalyptic number.

It is an amenable number.

155035401 is a deficient number, since it is larger than the sum of its proper divisors (51678471).

155035401 is an equidigital number, since it uses as much as digits as its factorization.

155035401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51678470.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 155035401 is about 12451.3212551922. The cubic root of 155035401 is about 537.2094276574.

Adding to 155035401 its reverse (104530551), we get a palindrome (259565952).

The spelling of 155035401 in words is "one hundred fifty-five million, thirty-five thousand, four hundred one".