1724990129 has 2 divisors, whose sum is σ = 1724990130. Its totient is φ = 1724990128.

The previous prime is 1724990081. The next prime is 1724990143. The reversal of 1724990129 is 9210994271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1703460529 + 21529600 = 41273^2 + 4640^2 .

It is a cyclic number.

It is not a de Polignac number, because 1724990129 - 2²⁰ = 1723941553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1724990129.

It is not a weakly prime, because it can be changed into another prime (1724990159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 862495064 + 862495065.

It is an arithmetic number, because the mean of its divisors is an integer number (862495065).

Almost surely, 2^1724990129 is an apocalyptic number.

It is an amenable number.

1724990129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1724990129 is an equidigital number, since it uses as much as digits as its factorization.

1724990129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 1724990129 is about 41533.0004815448. Note that the first 3 decimals coincide. The cubic root of 1724990129 is about 1199.3028656834.

The spelling of 1724990129 in words is "one billion, seven hundred twenty-four million, nine hundred ninety thousand, one hundred twenty-nine".