151721126 has 8 divisors (see below), whose sum is σ = 228737520. Its totient is φ = 75475288.

The previous prime is 151721117. The next prime is 151721131. The reversal of 151721126 is 621127151.

151721126 is digitally balanced in base 3, 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 junction number, because it is equal to n+sod(n) for n = 151721095 and 151721104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192146 + ... + 192933.

It is an arithmetic number, because the mean of its divisors is an integer number (28592190).

Almost surely, 2^151721126 is an apocalyptic number.

151721126 is a deficient number, since it is larger than the sum of its proper divisors (77016394).

151721126 is a wasteful number, since it uses less digits than its factorization.

151721126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385278.

The product of its digits is 840, while the sum is 26.

The square root of 151721126 is about 12317.5129794939. The cubic root of 151721126 is about 533.3537493053.

Adding to 151721126 its reverse (621127151), we get a palindrome (772848277).

The spelling of 151721126 in words is "one hundred fifty-one million, seven hundred twenty-one thousand, one hundred twenty-six".