1405147123 has 2 divisors, whose sum is σ = 1405147124. Its totient is φ = 1405147122.

The previous prime is 1405147111. The next prime is 1405147129. The reversal of 1405147123 is 3217415041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1405147123 - 2⁵ = 1405147091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1405147091 and 1405147100.

It is not a weakly prime, because it can be changed into another prime (1405147129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702573561 + 702573562.

It is an arithmetic number, because the mean of its divisors is an integer number (702573562).

Almost surely, 2^1405147123 is an apocalyptic number.

1405147123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405147123 is an equidigital number, since it uses as much as digits as its factorization.

1405147123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1405147123 is about 37485.2920890314. The cubic root of 1405147123 is about 1120.0582248111.

The spelling of 1405147123 in words is "one billion, four hundred five million, one hundred forty-seven thousand, one hundred twenty-three".