154279 has 2 divisors, whose sum is σ = 154280. Its totient is φ = 154278.

The previous prime is 154277. The next prime is 154291. The reversal of 154279 is 972451.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 154279 - 2¹ = 154277 is a prime.

Together with 154277, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77139 + 77140.

It is an arithmetic number, because the mean of its divisors is an integer number (77140).

2¹⁵⁴²⁷⁹ is an apocalyptic number.

154279 is a deficient number, since it is larger than the sum of its proper divisors (1).

154279 is an equidigital number, since it uses as much as digits as its factorization.

154279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 28.

The square root of 154279 is about 392.7836554644. The cubic root of 154279 is about 53.6334340674.

The spelling of 154279 in words is "one hundred fifty-four thousand, two hundred seventy-nine".