1378460231 has 2 divisors, whose sum is σ = 1378460232. Its totient is φ = 1378460230.

The previous prime is 1378460191. The next prime is 1378460267. The reversal of 1378460231 is 1320648731.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1378460231 is a prime.

It is a super-2 number, since 2×1378460231² = 3800305216897146722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1378460191 and 1378460200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1348460231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689230115 + 689230116.

It is an arithmetic number, because the mean of its divisors is an integer number (689230116).

Almost surely, 2^1378460231 is an apocalyptic number.

1378460231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1378460231 is an equidigital number, since it uses as much as digits as its factorization.

1378460231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1378460231 is about 37127.6208637182. The cubic root of 1378460231 is about 1112.9220499577.

The spelling of 1378460231 in words is "one billion, three hundred seventy-eight million, four hundred sixty thousand, two hundred thirty-one".