151103221 has 8 divisors (see below), whose sum is σ = 154742400. Its totient is φ = 147507360.

The previous prime is 151103201. The next prime is 151103233. The reversal of 151103221 is 122301151.

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

It is a cyclic number.

It is not a de Polignac number, because 151103221 - 2⁷ = 151103093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151103195 and 151103204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151103201) 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, 3715 + ... + 17776.

It is an arithmetic number, because the mean of its divisors is an integer number (19342800).

Almost surely, 2^151103221 is an apocalyptic number.

It is an amenable number.

151103221 is a deficient number, since it is larger than the sum of its proper divisors (3639179).

151103221 is an equidigital number, since it uses as much as digits as its factorization.

151103221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21659.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 151103221 is about 12292.4050128524. The cubic root of 151103221 is about 532.6287121543.

Adding to 151103221 its reverse (122301151), we get a palindrome (273404372).

The spelling of 151103221 in words is "one hundred fifty-one million, one hundred three thousand, two hundred twenty-one".