1499971423 has 2 divisors, whose sum is σ = 1499971424. Its totient is φ = 1499971422.

The previous prime is 1499971399. The next prime is 1499971439. The reversal of 1499971423 is 3241799941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1499971423 - 2²⁹ = 963100511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1499971463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749985711 + 749985712.

It is an arithmetic number, because the mean of its divisors is an integer number (749985712).

Almost surely, 2^1499971423 is an apocalyptic number.

1499971423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1499971423 is an equidigital number, since it uses as much as digits as its factorization.

1499971423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 49.

The square root of 1499971423 is about 38729.4645328334. The cubic root of 1499971423 is about 1144.7069730630.

The spelling of 1499971423 in words is "one billion, four hundred ninety-nine million, nine hundred seventy-one thousand, four hundred twenty-three".