1098274129 has 2 divisors, whose sum is σ = 1098274130. Its totient is φ = 1098274128.

The previous prime is 1098274097. The next prime is 1098274139. The reversal of 1098274129 is 9214728901.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1080634129 + 17640000 = 32873^2 + 4200^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098274129 - 2⁵ = 1098274097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1098274139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549137064 + 549137065.

It is an arithmetic number, because the mean of its divisors is an integer number (549137065).

Almost surely, 2^1098274129 is an apocalyptic number.

It is an amenable number.

1098274129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098274129 is an equidigital number, since it uses as much as digits as its factorization.

1098274129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 1098274129 is about 33140.2192056721. The cubic root of 1098274129 is about 1031.7399594321.

The spelling of 1098274129 in words is "one billion, ninety-eight million, two hundred seventy-four thousand, one hundred twenty-nine".