145005120431245 has 4 divisors (see below), whose sum is σ = 174006144517500. Its totient is φ = 116004096344992.

The previous prime is 145005120431233. The next prime is 145005120431263. The reversal of 145005120431245 is 542134021500541.

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 33771416897124 + 111233703534121 = 5811318^2 + 10546739^2 .

It is a cyclic number.

It is not a de Polignac number, because 145005120431245 - 2¹⁵ = 145005120398477 is a prime.

It is a super-2 number, since 2×145005120431245² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14500512043120 + ... + 14500512043129.

It is an arithmetic number, because the mean of its divisors is an integer number (43501536129375).

Almost surely, 2^{145005120431245} is an apocalyptic number.

It is an amenable number.

145005120431245 is a deficient number, since it is larger than the sum of its proper divisors (29001024086255).

145005120431245 is an equidigital number, since it uses as much as digits as its factorization.

145005120431245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29001024086254.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 145005120431245 its reverse (542134021500541), we get a palindrome (687139141931786).

The spelling of 145005120431245 in words is "one hundred forty-five trillion, five billion, one hundred twenty million, four hundred thirty-one thousand, two hundred forty-five".