225142494 has 8 divisors (see below), whose sum is σ = 450285000. Its totient is φ = 75047496.

The previous prime is 225142493. The next prime is 225142501. The reversal of 225142494 is 494241522.

It is a happy number.

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

225142494 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225142493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18761869 + ... + 18761880.

It is an arithmetic number, because the mean of its divisors is an integer number (56285625).

Almost surely, 2^225142494 is an apocalyptic number.

225142494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225142494 is a wasteful number, since it uses less digits than its factorization.

225142494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37523754.

The product of its digits is 23040, while the sum is 33.

The square root of 225142494 is about 15004.7490482180. The cubic root of 225142494 is about 608.3485690978.

The spelling of 225142494 in words is "two hundred twenty-five million, one hundred forty-two thousand, four hundred ninety-four".