1278059452 has 6 divisors (see below), whose sum is σ = 2236604048. Its totient is φ = 639029724.

The previous prime is 1278059443. The next prime is 1278059479. The reversal of 1278059452 is 2549508721.

It is a junction number, because it is equal to n+sod(n) for n = 1278059399 and 1278059408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159757428 + ... + 159757435.

Almost surely, 2^1278059452 is an apocalyptic number.

It is an amenable number.

1278059452 is a deficient number, since it is larger than the sum of its proper divisors (958544596).

1278059452 is a wasteful number, since it uses less digits than its factorization.

1278059452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319514867 (or 319514865 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 1278059452 is about 35749.9573706040. The cubic root of 1278059452 is about 1085.2180756133.

The spelling of 1278059452 in words is "one billion, two hundred seventy-eight million, fifty-nine thousand, four hundred fifty-two".