155480222 has 8 divisors (see below), whose sum is σ = 237173400. Its totient is φ = 76422424.

The previous prime is 155480219. The next prime is 155480231. The reversal of 155480222 is 222084551.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658697 + ... + 658932.

It is an arithmetic number, because the mean of its divisors is an integer number (29646675).

Almost surely, 2^155480222 is an apocalyptic number.

155480222 is a deficient number, since it is larger than the sum of its proper divisors (81693178).

155480222 is a wasteful number, since it uses less digits than its factorization.

155480222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317690.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 155480222 is about 12469.1708625714. The cubic root of 155480222 is about 537.7227165729.

The spelling of 155480222 in words is "one hundred fifty-five million, four hundred eighty thousand, two hundred twenty-two".