273142987 has 8 divisors (see below), whose sum is σ = 298545296. Its totient is φ = 248368032.

The previous prime is 273142981. The next prime is 273142997. The reversal of 273142987 is 789241372.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-273142987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (273142981) 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, 155928 + ... + 157669.

It is an arithmetic number, because the mean of its divisors is an integer number (37318162).

Almost surely, 2^273142987 is an apocalyptic number.

273142987 is a deficient number, since it is larger than the sum of its proper divisors (25402309).

273142987 is a wasteful number, since it uses less digits than its factorization.

273142987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313677.

The product of its digits is 169344, while the sum is 43.

The square root of 273142987 is about 16527.0380588900. The cubic root of 273142987 is about 648.8286493773.

The spelling of 273142987 in words is "two hundred seventy-three million, one hundred forty-two thousand, nine hundred eighty-seven".