155055214 has 4 divisors (see below), whose sum is σ = 232582824. Its totient is φ = 77527606.

The previous prime is 155055193. The next prime is 155055221. The reversal of 155055214 is 412550551.

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

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 as a sum of consecutive naturals, namely, 38763802 + ... + 38763805.

It is an arithmetic number, because the mean of its divisors is an integer number (58145706).

Almost surely, 2^155055214 is an apocalyptic number.

155055214 is a deficient number, since it is larger than the sum of its proper divisors (77527610).

155055214 is an equidigital number, since it uses as much as digits as its factorization.

155055214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77527609.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 155055214 is about 12452.1168481508. The cubic root of 155055214 is about 537.2323111988.

The spelling of 155055214 in words is "one hundred fifty-five million, fifty-five thousand, two hundred fourteen".