15145340331 has 16 divisors (see below), whose sum is σ = 22541904000. Its totient is φ = 8965528320.

The previous prime is 15145340323. The next prime is 15145340369. The reversal of 15145340331 is 13304354151.

It is not a de Polignac number, because 15145340331 - 2³ = 15145340323 is a prime.

It is a super-2 number, since 2×15145340331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15145340381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5335206 + ... + 5338043.

It is an arithmetic number, because the mean of its divisors is an integer number (1408869000).

Almost surely, 2^15145340331 is an apocalyptic number.

15145340331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15145340331 is a deficient number, since it is larger than the sum of its proper divisors (7396563669).

15145340331 is a wasteful number, since it uses less digits than its factorization.

15145340331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10673306.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 15145340331 its reverse (13304354151), we get a palindrome (28449694482).

The spelling of 15145340331 in words is "fifteen billion, one hundred forty-five million, three hundred forty thousand, three hundred thirty-one".