145331115 has 8 divisors (see below), whose sum is σ = 232529808. Its totient is φ = 77509920.

The previous prime is 145331111. The next prime is 145331119. The reversal of 145331115 is 511133541.

145331115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145331111) and next prime (145331119).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145331115 - 2² = 145331111 is a prime.

It is a super-2 number, since 2×145331115² = 42242265974286450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145331111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4844356 + ... + 4844385.

It is an arithmetic number, because the mean of its divisors is an integer number (29066226).

Almost surely, 2^145331115 is an apocalyptic number.

145331115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145331115 is a deficient number, since it is larger than the sum of its proper divisors (87198693).

145331115 is an equidigital number, since it uses as much as digits as its factorization.

145331115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9688749.

The product of its digits is 900, while the sum is 24.

The square root of 145331115 is about 12055.3355407471. The cubic root of 145331115 is about 525.7583778963.

Adding to 145331115 its reverse (511133541), we get a palindrome (656464656).

The spelling of 145331115 in words is "one hundred forty-five million, three hundred thirty-one thousand, one hundred fifteen".