145451361 has 16 divisors (see below), whose sum is σ = 212382720. Its totient is φ = 87811920.

The previous prime is 145451359. The next prime is 145451377. The reversal of 145451361 is 163154541.

It is a happy number.

It is not a de Polignac number, because 145451361 - 2¹ = 145451359 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145451321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300 + ... + 17058.

It is an arithmetic number, because the mean of its divisors is an integer number (13273920).

Almost surely, 2^145451361 is an apocalyptic number.

145451361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145451361 is a deficient number, since it is larger than the sum of its proper divisors (66931359).

145451361 is a wasteful number, since it uses less digits than its factorization.

145451361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17036.

The product of its digits is 7200, while the sum is 30.

The square root of 145451361 is about 12060.3217618768. The cubic root of 145451361 is about 525.9033409206.

The spelling of 145451361 in words is "one hundred forty-five million, four hundred fifty-one thousand, three hundred sixty-one".