100348649 has 2 divisors, whose sum is σ = 100348650. Its totient is φ = 100348648.

The previous prime is 100348621. The next prime is 100348679. The reversal of 100348649 is 946843001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98803600 + 1545049 = 9940^2 + 1243^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100348649 is a prime.

It is a super-2 number, since 2×100348649² = 20139702712250402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100348679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50174324 + 50174325.

It is an arithmetic number, because the mean of its divisors is an integer number (50174325).

Almost surely, 2^100348649 is an apocalyptic number.

It is an amenable number.

100348649 is a deficient number, since it is larger than the sum of its proper divisors (1).

100348649 is an equidigital number, since it uses as much as digits as its factorization.

100348649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 100348649 is about 10017.4172819145. The cubic root of 100348649 is about 464.6976861039.

The spelling of 100348649 in words is "one hundred million, three hundred forty-eight thousand, six hundred forty-nine".