155422006 has 4 divisors (see below), whose sum is σ = 233133012. Its totient is φ = 77711002.

The previous prime is 155421983. The next prime is 155422009. The reversal of 155422006 is 600224551.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155422009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38855500 + ... + 38855503.

It is an arithmetic number, because the mean of its divisors is an integer number (58283253).

Almost surely, 2^155422006 is an apocalyptic number.

155422006 is a deficient number, since it is larger than the sum of its proper divisors (77711006).

155422006 is an equidigital number, since it uses as much as digits as its factorization.

155422006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77711005.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 155422006 is about 12466.8362466185. The cubic root of 155422006 is about 537.6555955524.

Adding to 155422006 its reverse (600224551), we get a palindrome (755646557).

The spelling of 155422006 in words is "one hundred fifty-five million, four hundred twenty-two thousand, six".