274542139 has 8 divisors (see below), whose sum is σ = 278435520. Its totient is φ = 270672000.

The previous prime is 274542137. The next prime is 274542211. The reversal of 274542139 is 931245472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 274542139 - 2¹ = 274542137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 274542098 and 274542107.

It is not an unprimeable number, because it can be changed into a prime (274542133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18702 + ... + 29980.

It is an arithmetic number, because the mean of its divisors is an integer number (34804440).

Almost surely, 2^274542139 is an apocalyptic number.

274542139 is a deficient number, since it is larger than the sum of its proper divisors (3893381).

274542139 is a wasteful number, since it uses less digits than its factorization.

274542139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11621.

The product of its digits is 60480, while the sum is 37.

The square root of 274542139 is about 16569.3131722471. The cubic root of 274542139 is about 649.9346198539.

The spelling of 274542139 in words is "two hundred seventy-four million, five hundred forty-two thousand, one hundred thirty-nine".