151428946 has 4 divisors (see below), whose sum is σ = 227143422. Its totient is φ = 75714472.

The previous prime is 151428919. The next prime is 151428947. The reversal of 151428946 is 649824151.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 141348321 + 10080625 = 11889^2 + 3175^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 151428899 and 151428908.

It is not an unprimeable number, because it can be changed into a prime (151428947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37857235 + ... + 37857238.

Almost surely, 2^151428946 is an apocalyptic number.

151428946 is a deficient number, since it is larger than the sum of its proper divisors (75714476).

151428946 is an equidigital number, since it uses as much as digits as its factorization.

151428946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75714475.

The product of its digits is 69120, while the sum is 40.

The square root of 151428946 is about 12305.6469151362. The cubic root of 151428946 is about 533.0111570681.

The spelling of 151428946 in words is "one hundred fifty-one million, four hundred twenty-eight thousand, nine hundred forty-six".