1494072123 has 4 divisors (see below), whose sum is σ = 1992096168. Its totient is φ = 996048080.

The previous prime is 1494072121. The next prime is 1494072133. The reversal of 1494072123 is 3212704941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1494072123 - 2¹ = 1494072121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1494072121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249012018 + ... + 249012023.

It is an arithmetic number, because the mean of its divisors is an integer number (498024042).

Almost surely, 2^1494072123 is an apocalyptic number.

1494072123 is a deficient number, since it is larger than the sum of its proper divisors (498024045).

1494072123 is an equidigital number, since it uses as much as digits as its factorization.

1494072123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498024044.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1494072123 is about 38653.2291406552. The cubic root of 1494072123 is about 1143.2043128236.

The spelling of 1494072123 in words is "one billion, four hundred ninety-four million, seventy-two thousand, one hundred twenty-three".