155222246 has 8 divisors (see below), whose sum is σ = 232914744. Its totient is φ = 77584000.

The previous prime is 155222237. The next prime is 155222251. The reversal of 155222246 is 642222551.

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

It is a Curzon number.

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, 5435 + ... + 18438.

It is an arithmetic number, because the mean of its divisors is an integer number (29114343).

Almost surely, 2^155222246 is an apocalyptic number.

155222246 is a deficient number, since it is larger than the sum of its proper divisors (77692498).

155222246 is a wasteful number, since it uses less digits than its factorization.

155222246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27126.

The product of its digits is 9600, while the sum is 29.

The square root of 155222246 is about 12458.8220149419. The cubic root of 155222246 is about 537.4251517194.

Adding to 155222246 its reverse (642222551), we get a palindrome (797444797).

The spelling of 155222246 in words is "one hundred fifty-five million, two hundred twenty-two thousand, two hundred forty-six".