155005214 has 16 divisors (see below), whose sum is σ = 286163808. Its totient is φ = 61320672.

The previous prime is 155005187. The next prime is 155005217. The reversal of 155005214 is 412500551.

It is a happy number.

155005214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 155005214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155005217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425657 + ... + 426020.

It is an arithmetic number, because the mean of its divisors is an integer number (17885238).

Almost surely, 2^155005214 is an apocalyptic number.

155005214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

155005214 is a deficient number, since it is larger than the sum of its proper divisors (131158594).

155005214 is a wasteful number, since it uses less digits than its factorization.

155005214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851699.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 155005214 is about 12450.1089955068. The cubic root of 155005214 is about 537.1745586458.

Adding to 155005214 its reverse (412500551), we get a palindrome (567505765).

The spelling of 155005214 in words is "one hundred fifty-five million, five thousand, two hundred fourteen".