980404129 has 4 divisors (see below), whose sum is σ = 980660884. Its totient is φ = 980147376.

The previous prime is 980404081. The next prime is 980404157. The reversal of 980404129 is 921404089.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 921404089 = 131 ⋅7033619.

It can be written as a sum of positive squares in 2 ways, for example, as 372683025 + 607721104 = 19305^2 + 24652^2 .

It is a cyclic number.

It is not a de Polignac number, because 980404129 - 2⁷ = 980404001 is a prime.

It is a super-2 number, since 2×980404129² = 1922384512320497282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (980401129) 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, 122562 + ... + 130315.

It is an arithmetic number, because the mean of its divisors is an integer number (245165221).

Almost surely, 2^980404129 is an apocalyptic number.

It is an amenable number.

980404129 is a deficient number, since it is larger than the sum of its proper divisors (256755).

980404129 is a wasteful number, since it uses less digits than its factorization.

980404129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256754.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 980404129 is about 31311.4057333745. The cubic root of 980404129 is about 993.4249058886.

The spelling of 980404129 in words is "nine hundred eighty million, four hundred four thousand, one hundred twenty-nine".