151305501 has 4 divisors (see below), whose sum is σ = 201740672. Its totient is φ = 100870332.

The previous prime is 151305487. The next prime is 151305521. The reversal of 151305501 is 105503151.

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.

It is not a de Polignac number, because 151305501 - 2¹⁸ = 151043357 is a prime.

It is a super-2 number, since 2×151305501² = 45786709265722002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151305521) 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, 25217581 + ... + 25217586.

It is an arithmetic number, because the mean of its divisors is an integer number (50435168).

Almost surely, 2^151305501 is an apocalyptic number.

It is an amenable number.

151305501 is a deficient number, since it is larger than the sum of its proper divisors (50435171).

151305501 is an equidigital number, since it uses as much as digits as its factorization.

151305501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50435170.

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 151305501 is about 12300.6301058117. The cubic root of 151305501 is about 532.8662806502.

Adding to 151305501 its reverse (105503151), we get a palindrome (256808652).

The spelling of 151305501 in words is "one hundred fifty-one million, three hundred five thousand, five hundred one".