155036161 has 4 divisors (see below), whose sum is σ = 177184192. Its totient is φ = 132888132.

The previous prime is 155036149. The next prime is 155036201. The reversal of 155036161 is 161630551.

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 155036161 - 2¹³ = 155027969 is a prime.

It is a super-2 number, since 2×155036161² = 48072422435235842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155039161) 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, 11074005 + ... + 11074018.

It is an arithmetic number, because the mean of its divisors is an integer number (44296048).

Almost surely, 2^155036161 is an apocalyptic number.

It is an amenable number.

155036161 is a deficient number, since it is larger than the sum of its proper divisors (22148031).

155036161 is an equidigital number, since it uses as much as digits as its factorization.

155036161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22148030.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 155036161 is about 12451.3517740043. The cubic root of 155036161 is about 537.2103054752.

The spelling of 155036161 in words is "one hundred fifty-five million, thirty-six thousand, one hundred sixty-one".