145048097 has 18 divisors (see below), whose sum is σ = 161822178. Its totient is φ = 129552192.

The previous prime is 145048093. The next prime is 145048129. The reversal of 145048097 is 790840541.

It can be written as a sum of positive squares in only one way, i.e., 136515856 + 8532241 = 11684^2 + 2921^2 .

It is not a de Polignac number, because 145048097 - 2² = 145048093 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145048097.

It is not an unprimeable number, because it can be changed into a prime (145048091) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1142048 + ... + 1142174.

It is an arithmetic number, because the mean of its divisors is an integer number (8990121).

Almost surely, 2^145048097 is an apocalyptic number.

145048097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

145048097 is a deficient number, since it is larger than the sum of its proper divisors (16774081).

145048097 is an equidigital number, since it uses as much as digits as its factorization.

145048097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 145048097 is about 12043.5915324292. The cubic root of 145048097 is about 525.4168686016.

The spelling of 145048097 in words is "one hundred forty-five million, forty-eight thousand, ninety-seven".