145857179 has 4 divisors (see below), whose sum is σ = 157076976. Its totient is φ = 134637384.

The previous prime is 145857097. The next prime is 145857181. The reversal of 145857179 is 971758541.

145857179 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 971758541 = 13 ⋅74750657.

It is a cyclic number.

It is not a de Polignac number, because 145857179 - 2¹² = 145853083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145857079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5609879 + ... + 5609904.

It is an arithmetic number, because the mean of its divisors is an integer number (39269244).

Almost surely, 2^145857179 is an apocalyptic number.

145857179 is a deficient number, since it is larger than the sum of its proper divisors (11219797).

145857179 is a wasteful number, since it uses less digits than its factorization.

145857179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11219796.

The product of its digits is 352800, while the sum is 47.

The square root of 145857179 is about 12077.1345525336. The cubic root of 145857179 is about 526.3919873470.

The spelling of 145857179 in words is "one hundred forty-five million, eight hundred fifty-seven thousand, one hundred seventy-nine".