1499406971 has 2 divisors, whose sum is σ = 1499406972. Its totient is φ = 1499406970.

The previous prime is 1499406917. The next prime is 1499407009. The reversal of 1499406971 is 1796049941.

It is a happy number.

Together with previous prime (1499406917) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1499406971 - 2³⁰ = 425665147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1499400971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749703485 + 749703486.

It is an arithmetic number, because the mean of its divisors is an integer number (749703486).

Almost surely, 2^1499406971 is an apocalyptic number.

1499406971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1499406971 is an equidigital number, since it uses as much as digits as its factorization.

1499406971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 1499406971 is about 38722.1767337530. The cubic root of 1499406971 is about 1144.5633673925.

The spelling of 1499406971 in words is "one billion, four hundred ninety-nine million, four hundred six thousand, nine hundred seventy-one".