151223146 has 8 divisors (see below), whose sum is σ = 234152064. Its totient is φ = 73172460.

The previous prime is 151223141. The next prime is 151223167. The reversal of 151223146 is 641322151.

151223146 = T₃₁₀₈ + T₃₁₀₉ + ... + T₃₁₃₈.

It is a happy number.

151223146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×151223146² = 45736879772274632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 151223146.

It is not an unprimeable number, because it can be changed into a prime (151223141) 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, 1219480 + ... + 1219603.

It is an arithmetic number, because the mean of its divisors is an integer number (29269008).

Almost surely, 2^151223146 is an apocalyptic number.

151223146 is a deficient number, since it is larger than the sum of its proper divisors (82928918).

151223146 is a wasteful number, since it uses less digits than its factorization.

151223146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439116.

The product of its digits is 1440, while the sum is 25.

The square root of 151223146 is about 12297.2820574304. The cubic root of 151223146 is about 532.7695840845.

Adding to 151223146 its reverse (641322151), we get a palindrome (792545297).

The spelling of 151223146 in words is "one hundred fifty-one million, two hundred twenty-three thousand, one hundred forty-six".