1098199951 has 2 divisors, whose sum is σ = 1098199952. Its totient is φ = 1098199950.

The previous prime is 1098199937. The next prime is 1098200053. The reversal of 1098199951 is 1599918901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1098199951 - 2¹⁵ = 1098167183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1098199931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549099975 + 549099976.

It is an arithmetic number, because the mean of its divisors is an integer number (549099976).

Almost surely, 2^1098199951 is an apocalyptic number.

1098199951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098199951 is an equidigital number, since it uses as much as digits as its factorization.

1098199951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262440, while the sum is 52.

The square root of 1098199951 is about 33139.1000330425. The cubic root of 1098199951 is about 1031.7167308265.

The spelling of 1098199951 in words is "one billion, ninety-eight million, one hundred ninety-nine thousand, nine hundred fifty-one".