145231516351 has 4 divisors (see below), whose sum is σ = 145235422912. Its totient is φ = 145227609792.

The previous prime is 145231516349. The next prime is 145231516393. The reversal of 145231516351 is 153615132541.

145231516351 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.

It is a cyclic number.

It is not a de Polignac number, because 145231516351 - 2¹ = 145231516349 is a prime.

It is a super-2 number, since 2×145231516351² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145231516351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145231816351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1896975 + ... + 1972048.

It is an arithmetic number, because the mean of its divisors is an integer number (36308855728).

Almost surely, 2^145231516351 is an apocalyptic number.

145231516351 is a deficient number, since it is larger than the sum of its proper divisors (3906561).

145231516351 is an equidigital number, since it uses as much as digits as its factorization.

145231516351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3906560.

The product of its digits is 54000, while the sum is 37.

Adding to 145231516351 its reverse (153615132541), we get a palindrome (298846648892).

The spelling of 145231516351 in words is "one hundred forty-five billion, two hundred thirty-one million, five hundred sixteen thousand, three hundred fifty-one".