145312111 has 8 divisors (see below), whose sum is σ = 167783840. Its totient is φ = 123268608.

The previous prime is 145312067. The next prime is 145312157. The reversal of 145312111 is 111213541.

145312111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 145312111 - 2¹³ = 145303919 is a prime.

It is a super-2 number, since 2×145312111² = 42231219206552642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145312711) 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, 106326 + ... + 107683.

It is an arithmetic number, because the mean of its divisors is an integer number (20972980).

Almost surely, 2^145312111 is an apocalyptic number.

145312111 is a deficient number, since it is larger than the sum of its proper divisors (22471729).

145312111 is an equidigital number, since it uses as much as digits as its factorization.

145312111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214113.

The product of its digits is 120, while the sum is 19.

The square root of 145312111 is about 12054.5473162620. The cubic root of 145312111 is about 525.7354602351.

Adding to 145312111 its reverse (111213541), we get a palindrome (256525652).

The spelling of 145312111 in words is "one hundred forty-five million, three hundred twelve thousand, one hundred eleven".