1378147001 has 24 divisors (see below), whose sum is σ = 1751795136. Its totient is φ = 1072098720.

The previous prime is 1378146989. The next prime is 1378147003. The reversal of 1378147001 is 1007418731.

It is a happy number.

It is not a de Polignac number, because 1378147001 - 2⁶ = 1378146937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1378147003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 390095 + ... + 393611.

It is an arithmetic number, because the mean of its divisors is an integer number (72991464).

Almost surely, 2^1378147001 is an apocalyptic number.

1378147001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1378147001 is a deficient number, since it is larger than the sum of its proper divisors (373648135).

1378147001 is a wasteful number, since it uses less digits than its factorization.

1378147001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269 (or 4262 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 1378147001 is about 37123.4023359929. The cubic root of 1378147001 is about 1112.8377464782.

The spelling of 1378147001 in words is "one billion, three hundred seventy-eight million, one hundred forty-seven thousand, one".