345127279 has 4 divisors (see below), whose sum is σ = 394431184. Its totient is φ = 295823376.

The previous prime is 345127271. The next prime is 345127297. The reversal of 345127279 is 972721543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345127279 - 2³ = 345127271 is a prime.

It is a super-2 number, since 2×345127279² = 238225677419887682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345127271) 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, 24651942 + ... + 24651955.

It is an arithmetic number, because the mean of its divisors is an integer number (98607796).

Almost surely, 2^345127279 is an apocalyptic number.

345127279 is a deficient number, since it is larger than the sum of its proper divisors (49303905).

345127279 is an equidigital number, since it uses as much as digits as its factorization.

345127279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49303904.

The product of its digits is 105840, while the sum is 40.

The square root of 345127279 is about 18577.6015405649. The cubic root of 345127279 is about 701.4441471497. Note that the first 3 decimals are identical.

The spelling of 345127279 in words is "three hundred forty-five million, one hundred twenty-seven thousand, two hundred seventy-nine".