151126221 has 16 divisors (see below), whose sum is σ = 209966400. Its totient is φ = 96569088.

The previous prime is 151126193. The next prime is 151126237. The reversal of 151126221 is 122621151.

It is not a de Polignac number, because 151126221 - 2¹³ = 151118029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151126021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5845 + ... + 18341.

It is an arithmetic number, because the mean of its divisors is an integer number (13122900).

Almost surely, 2^151126221 is an apocalyptic number.

It is an amenable number.

151126221 is a deficient number, since it is larger than the sum of its proper divisors (58840179).

151126221 is a wasteful number, since it uses less digits than its factorization.

151126221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12668.

The product of its digits is 240, while the sum is 21.

The square root of 151126221 is about 12293.3405142785. The cubic root of 151126221 is about 532.6557352686.

Adding to 151126221 its reverse (122621151), we get a palindrome (273747372).

The spelling of 151126221 in words is "one hundred fifty-one million, one hundred twenty-six thousand, two hundred twenty-one".