1374100643 has 2 divisors, whose sum is σ = 1374100644. Its totient is φ = 1374100642.

The previous prime is 1374100621. The next prime is 1374100697. The reversal of 1374100643 is 3460014731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1374100643 - 2¹² = 1374096547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1374100603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687050321 + 687050322.

It is an arithmetic number, because the mean of its divisors is an integer number (687050322).

Almost surely, 2^1374100643 is an apocalyptic number.

1374100643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374100643 is an equidigital number, since it uses as much as digits as its factorization.

1374100643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1374100643 is about 37068.8635245269. The cubic root of 1374100643 is about 1111.7475497324.

The spelling of 1374100643 in words is "one billion, three hundred seventy-four million, one hundred thousand, six hundred forty-three".