155015422 has 8 divisors (see below), whose sum is σ = 238807656. Its totient is φ = 75412872.

The previous prime is 155015389. The next prime is 155015429. The reversal of 155015422 is 224510551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155015429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047328 + ... + 1047475.

It is an arithmetic number, because the mean of its divisors is an integer number (29850957).

Almost surely, 2^155015422 is an apocalyptic number.

155015422 is a deficient number, since it is larger than the sum of its proper divisors (83792234).

155015422 is a wasteful number, since it uses less digits than its factorization.

155015422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094842.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 155015422 is about 12450.5189450079. The cubic root of 155015422 is about 537.1863504158.

Adding to 155015422 its reverse (224510551), we get a palindrome (379525973).

The spelling of 155015422 in words is "one hundred fifty-five million, fifteen thousand, four hundred twenty-two".