151312511 has 4 divisors (see below), whose sum is σ = 172928592. Its totient is φ = 129696432.

The previous prime is 151312493. The next prime is 151312541. The reversal of 151312511 is 115213151.

It is a happy number.

151312511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115213151 = 151 ⋅763001.

It is a cyclic number.

It is not a de Polignac number, because 151312511 - 2¹⁴ = 151296127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151312541) 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, 10808030 + ... + 10808043.

It is an arithmetic number, because the mean of its divisors is an integer number (43232148).

Almost surely, 2^151312511 is an apocalyptic number.

151312511 is a deficient number, since it is larger than the sum of its proper divisors (21616081).

151312511 is an equidigital number, since it uses as much as digits as its factorization.

151312511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21616080.

The product of its digits is 150, while the sum is 20.

The square root of 151312511 is about 12300.9150472638. The cubic root of 151312511 is about 532.8745097736.

Adding to 151312511 its reverse (115213151), we get a palindrome (266525662).

The spelling of 151312511 in words is "one hundred fifty-one million, three hundred twelve thousand, five hundred eleven".