151603123 has 8 divisors (see below), whose sum is σ = 174141792. Its totient is φ = 129284736.

The previous prime is 151603103. The next prime is 151603139. The reversal of 151603123 is 321306151.

It is a happy number.

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

It is not a de Polignac number, because 151603123 - 2⁹ = 151602611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151603094 and 151603103.

It is not an unprimeable number, because it can be changed into a prime (151603103) 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 in 7 ways as a sum of consecutive naturals, for example, 53590 + ... + 56347.

It is an arithmetic number, because the mean of its divisors is an integer number (21767724).

Almost surely, 2^151603123 is an apocalyptic number.

151603123 is a deficient number, since it is larger than the sum of its proper divisors (22538669).

151603123 is a wasteful number, since it uses less digits than its factorization.

151603123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110141.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 151603123 is about 12312.7219979987. The cubic root of 151603123 is about 533.2154392625.

Adding to 151603123 its reverse (321306151), we get a palindrome (472909274).

The spelling of 151603123 in words is "one hundred fifty-one million, six hundred three thousand, one hundred twenty-three".