1542271866 has 8 divisors (see below), whose sum is σ = 3084543744. Its totient is φ = 514090620.

The previous prime is 1542271853. The next prime is 1542271897. The reversal of 1542271866 is 6681722451.

It is a happy number.

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

1542271866 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128522650 + ... + 128522661.

It is an arithmetic number, because the mean of its divisors is an integer number (385567968).

Almost surely, 2^1542271866 is an apocalyptic number.

1542271866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1542271866 is a wasteful number, since it uses less digits than its factorization.

1542271866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257045316.

The product of its digits is 161280, while the sum is 42.

The square root of 1542271866 is about 39271.7693260693. The cubic root of 1542271866 is about 1155.3679395963.

The spelling of 1542271866 in words is "one billion, five hundred forty-two million, two hundred seventy-one thousand, eight hundred sixty-six".