155020014 has 32 divisors (see below), whose sum is σ = 345060000. Its totient is φ = 51587712.

The previous prime is 155019989. The next prime is 155020037. The reversal of 155020014 is 410020551.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 36262 + ... + 40310.

It is an arithmetic number, because the mean of its divisors is an integer number (10783125).

Almost surely, 2^155020014 is an apocalyptic number.

155020014 is an abundant number, since it is smaller than the sum of its proper divisors (190039986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155020014 is a wasteful number, since it uses less digits than its factorization.

155020014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4769 (or 4763 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 155020014 is about 12450.7033536263. The cubic root of 155020014 is about 537.1916546953.

Adding to 155020014 its reverse (410020551), we get a palindrome (565040565).

The spelling of 155020014 in words is "one hundred fifty-five million, twenty thousand, fourteen".