155014223 has 8 divisors (see below), whose sum is σ = 190786848. Its totient is φ = 122648544.

The previous prime is 155014219. The next prime is 155014253. The reversal of 155014223 is 322410551.

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

It is a cyclic number.

It is not a de Polignac number, because 155014223 - 2² = 155014219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155014253) 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, 851636 + ... + 851817.

It is an arithmetic number, because the mean of its divisors is an integer number (23848356).

Almost surely, 2^155014223 is an apocalyptic number.

155014223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

155014223 is a deficient number, since it is larger than the sum of its proper divisors (35772625).

155014223 is a wasteful number, since it uses less digits than its factorization.

155014223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703473.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 155014223 is about 12450.4707943114. The cubic root of 155014223 is about 537.1849654179.

Adding to 155014223 its reverse (322410551), we get a palindrome (477424774).

The spelling of 155014223 in words is "one hundred fifty-five million, fourteen thousand, two hundred twenty-three".