145878279 has 4 divisors (see below), whose sum is σ = 194504376. Its totient is φ = 97252184.

The previous prime is 145878269. The next prime is 145878289. The reversal of 145878279 is 972878541.

145878279 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.

It is an interprime number because it is at equal distance from previous prime (145878269) and next prime (145878289).

It is a cyclic number.

It is not a de Polignac number, because 145878279 - 2⁴ = 145878263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145878269) 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, 24313044 + ... + 24313049.

It is an arithmetic number, because the mean of its divisors is an integer number (48626094).

Almost surely, 2^145878279 is an apocalyptic number.

145878279 is a deficient number, since it is larger than the sum of its proper divisors (48626097).

145878279 is an equidigital number, since it uses as much as digits as its factorization.

145878279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48626096.

The product of its digits is 1128960, while the sum is 51.

The square root of 145878279 is about 12078.0080725259. The cubic root of 145878279 is about 526.4173691062.

The spelling of 145878279 in words is "one hundred forty-five million, eight hundred seventy-eight thousand, two hundred seventy-nine".