151340305 has 4 divisors (see below), whose sum is σ = 181608372. Its totient is φ = 121072240.

The previous prime is 151340303. The next prime is 151340327. The reversal of 151340305 is 503043151.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97772544 + 53567761 = 9888^2 + 7319^2 .

It is not a de Polignac number, because 151340305 - 2¹ = 151340303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151340303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15134026 + ... + 15134035.

It is an arithmetic number, because the mean of its divisors is an integer number (45402093).

Almost surely, 2^151340305 is an apocalyptic number.

It is an amenable number.

151340305 is a deficient number, since it is larger than the sum of its proper divisors (30268067).

151340305 is an equidigital number, since it uses as much as digits as its factorization.

151340305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30268066.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 151340305 is about 12302.0447487399. The cubic root of 151340305 is about 532.9071349837.

Adding to 151340305 its reverse (503043151), we get a palindrome (654383456).

The spelling of 151340305 in words is "one hundred fifty-one million, three hundred forty thousand, three hundred five".