145116893 has 4 divisors (see below), whose sum is σ = 145868988. Its totient is φ = 144364800.

The previous prime is 145116869. The next prime is 145116941. The reversal of 145116893 is 398611541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67289209 + 77827684 = 8203^2 + 8822^2 .

It is a cyclic number.

It is not a de Polignac number, because 145116893 - 2¹² = 145112797 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 (145116833) 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, 375758 + ... + 376143.

It is an arithmetic number, because the mean of its divisors is an integer number (36467247).

Almost surely, 2^145116893 is an apocalyptic number.

It is an amenable number.

145116893 is a deficient number, since it is larger than the sum of its proper divisors (752095).

145116893 is an equidigital number, since it uses as much as digits as its factorization.

145116893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752094.

The product of its digits is 25920, while the sum is 38.

The square root of 145116893 is about 12046.4473186081. The cubic root of 145116893 is about 525.4999235018.

The spelling of 145116893 in words is "one hundred forty-five million, one hundred sixteen thousand, eight hundred ninety-three".