155322145 has 16 divisors (see below), whose sum is σ = 208293120. Its totient is φ = 110204800.

The previous prime is 155322127. The next prime is 155322157. The reversal of 155322145 is 541223551.

It is not a de Polignac number, because 155322145 - 2¹³ = 155313953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32185 + ... + 36694.

It is an arithmetic number, because the mean of its divisors is an integer number (13018320).

Almost surely, 2^155322145 is an apocalyptic number.

It is an amenable number.

155322145 is a deficient number, since it is larger than the sum of its proper divisors (52970975).

155322145 is a wasteful number, since it uses less digits than its factorization.

155322145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68936.

The product of its digits is 6000, while the sum is 28.

The square root of 155322145 is about 12462.8305372415. The cubic root of 155322145 is about 537.5404202522.

Adding to 155322145 its reverse (541223551), we get a palindrome (696545696).

The spelling of 155322145 in words is "one hundred fifty-five million, three hundred twenty-two thousand, one hundred forty-five".