151320241 has 4 divisors (see below), whose sum is σ = 153451584. Its totient is φ = 149188900.

The previous prime is 151320233. The next prime is 151320251. The reversal of 151320241 is 142023151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 142023151 = 17 ⋅8354303.

It is a cyclic number.

It is not a de Polignac number, because 151320241 - 2³ = 151320233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151320251) 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 3 ways as a sum of consecutive naturals, for example, 1065565 + ... + 1065706.

It is an arithmetic number, because the mean of its divisors is an integer number (38362896).

Almost surely, 2^151320241 is an apocalyptic number.

It is an amenable number.

151320241 is a deficient number, since it is larger than the sum of its proper divisors (2131343).

151320241 is an equidigital number, since it uses as much as digits as its factorization.

151320241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131342.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 151320241 is about 12301.2292475183. The cubic root of 151320241 is about 532.8835838191.

Adding to 151320241 its reverse (142023151), we get a palindrome (293343392).

The spelling of 151320241 in words is "one hundred fifty-one million, three hundred twenty thousand, two hundred forty-one".