155422673 has 4 divisors (see below), whose sum is σ = 177625920. Its totient is φ = 133219428.

The previous prime is 155422669. The next prime is 155422691. The reversal of 155422673 is 376224551.

155422673 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.

It is a cyclic number.

It is not a de Polignac number, because 155422673 - 2² = 155422669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155422273) 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, 11101613 + ... + 11101626.

It is an arithmetic number, because the mean of its divisors is an integer number (44406480).

Almost surely, 2^155422673 is an apocalyptic number.

It is an amenable number.

155422673 is a deficient number, since it is larger than the sum of its proper divisors (22203247).

155422673 is an equidigital number, since it uses as much as digits as its factorization.

155422673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22203246.

The product of its digits is 50400, while the sum is 35.

The square root of 155422673 is about 12466.8629975628. The cubic root of 155422673 is about 537.6563646750.

The spelling of 155422673 in words is "one hundred fifty-five million, four hundred twenty-two thousand, six hundred seventy-three".