1398190097 has 8 divisors (see below), whose sum is σ = 1424778240. Its totient is φ = 1371803040.

The previous prime is 1398190049. The next prime is 1398190099. The reversal of 1398190097 is 7900918931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1398190097 - 2¹⁸ = 1397927953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1398190099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36197 + ... + 64082.

It is an arithmetic number, because the mean of its divisors is an integer number (178097280).

Almost surely, 2^1398190097 is an apocalyptic number.

It is an amenable number.

1398190097 is a deficient number, since it is larger than the sum of its proper divisors (26588143).

1398190097 is a wasteful number, since it uses less digits than its factorization.

1398190097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100543.

The product of its (nonzero) digits is 122472, while the sum is 47.

The square root of 1398190097 is about 37392.3801997145. The cubic root of 1398190097 is about 1118.2066583647.

The spelling of 1398190097 in words is "one billion, three hundred ninety-eight million, one hundred ninety thousand, ninety-seven".