145779879 has 16 divisors (see below), whose sum is σ = 235208448. Its totient is φ = 78402432.

The previous prime is 145779877. The next prime is 145779899. The reversal of 145779879 is 978977541.

It is not a de Polignac number, because 145779879 - 2¹ = 145779877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145779877) 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, 203817 + ... + 204530.

It is an arithmetic number, because the mean of its divisors is an integer number (14700528).

Almost surely, 2^145779879 is an apocalyptic number.

145779879 is a deficient number, since it is larger than the sum of its proper divisors (89428569).

145779879 is a wasteful number, since it uses less digits than its factorization.

145779879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408374.

The product of its digits is 4445280, while the sum is 57.

The square root of 145779879 is about 12073.9338659776. The cubic root of 145779879 is about 526.2989801756.

The spelling of 145779879 in words is "one hundred forty-five million, seven hundred seventy-nine thousand, eight hundred seventy-nine".