145244793 has 16 divisors (see below), whose sum is σ = 204172416. Its totient is φ = 91660800.

The previous prime is 145244791. The next prime is 145244807. The reversal of 145244793 is 397442541.

It is not a de Polignac number, because 145244793 - 2¹ = 145244791 is a prime.

It is a super-2 number, since 2×145244793² = 42192099787225698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145244791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4158 + ... + 17543.

It is an arithmetic number, because the mean of its divisors is an integer number (12760776).

Almost surely, 2^145244793 is an apocalyptic number.

It is an amenable number.

145244793 is a deficient number, since it is larger than the sum of its proper divisors (58927623).

145244793 is a wasteful number, since it uses less digits than its factorization.

145244793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21824.

The product of its digits is 120960, while the sum is 39.

The square root of 145244793 is about 12051.7547684974. The cubic root of 145244793 is about 525.6542627674.

The spelling of 145244793 in words is "one hundred forty-five million, two hundred forty-four thousand, seven hundred ninety-three".