1054139280 has 80 divisors (see below), whose sum is σ = 3272570304. Its totient is φ = 280696320.

The previous prime is 1054139279. The next prime is 1054139293. The reversal of 1054139280 is 829314501.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1054139280² = 2222419243277836800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186090 + ... + 191670.

Almost surely, 2^1054139280 is an apocalyptic number.

1054139280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1054139280 is an abundant number, since it is smaller than the sum of its proper divisors (2218431024).

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

1054139280 is a wasteful number, since it uses less digits than its factorization.

1054139280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6384 (or 6378 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1054139280 is about 32467.5111457592. The cubic root of 1054139280 is about 1017.7302084827.

The spelling of 1054139280 in words is "one billion, fifty-four million, one hundred thirty-nine thousand, two hundred eighty".