225156723 has 8 divisors (see below), whose sum is σ = 327500736. Its totient is φ = 136458600.

The previous prime is 225156719. The next prime is 225156727. The reversal of 225156723 is 327651522.

It is an interprime number because it is at equal distance from previous prime (225156719) and next prime (225156727).

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

It is not a de Polignac number, because 225156723 - 2² = 225156719 is a prime.

It is a super-3 number, since 3×225156723³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 6822931 = 225156723 / (2 + 2 + 5 + 1 + 5 + 6 + 7 + 2 + 3).

It is not an unprimeable number, because it can be changed into a prime (225156727) 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, 3411433 + ... + 3411498.

It is an arithmetic number, because the mean of its divisors is an integer number (40937592).

Almost surely, 2^225156723 is an apocalyptic number.

225156723 is a deficient number, since it is larger than the sum of its proper divisors (102344013).

225156723 is a wasteful number, since it uses less digits than its factorization.

225156723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6822945.

The product of its digits is 25200, while the sum is 33.

The square root of 225156723 is about 15005.2231906093. The cubic root of 225156723 is about 608.3613846993.

The spelling of 225156723 in words is "two hundred twenty-five million, one hundred fifty-six thousand, seven hundred twenty-three".