423243154 has 8 divisors (see below), whose sum is σ = 644340528. Its totient is φ = 208462980.

The previous prime is 423243151. The next prime is 423243157. The reversal of 423243154 is 451342324.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (423243151) and next prime (423243157).

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

It is not an unprimeable number, because it can be changed into a prime (423243151) 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, 1579132 + ... + 1579399.

It is an arithmetic number, because the mean of its divisors is an integer number (80542566).

Almost surely, 2^423243154 is an apocalyptic number.

423243154 is a deficient number, since it is larger than the sum of its proper divisors (221097374).

423243154 is a wasteful number, since it uses less digits than its factorization.

423243154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158600.

The product of its digits is 11520, while the sum is 28.

The square root of 423243154 is about 20572.8742279731. The cubic root of 423243154 is about 750.8098830637.

Adding to 423243154 its reverse (451342324), we get a palindrome (874585478).

The spelling of 423243154 in words is "four hundred twenty-three million, two hundred forty-three thousand, one hundred fifty-four".