1378000061 has 8 divisors (see below), whose sum is σ = 1452309600. Its totient is φ = 1303868880.

The previous prime is 1378000051. The next prime is 1378000079. The reversal of 1378000061 is 1600008731.

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-1378000061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378000051) 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, 28571 + ... + 59768.

It is an arithmetic number, because the mean of its divisors is an integer number (181538700).

Almost surely, 2^1378000061 is an apocalyptic number.

It is an amenable number.

1378000061 is a deficient number, since it is larger than the sum of its proper divisors (74309539).

1378000061 is an equidigital number, since it uses as much as digits as its factorization.

1378000061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89179.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1378000061 is about 37121.4232081692. The cubic root of 1378000061 is about 1112.7981942896.

Adding to 1378000061 its reverse (1600008731), we get a palindrome (2978008792).

The spelling of 1378000061 in words is "one billion, three hundred seventy-eight million, sixty-one", and thus it is an aban number.