200148681 has 8 divisors (see below), whose sum is σ = 267658144. Its totient is φ = 133035840.

The previous prime is 200148677. The next prime is 200148731. The reversal of 200148681 is 186841002.

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

It is not a de Polignac number, because 200148681 - 2² = 200148677 is a prime.

It is a super-2 number, since 2×200148681² = 80118989012079522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200148601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97975 + ... + 99996.

It is an arithmetic number, because the mean of its divisors is an integer number (33457268).

Almost surely, 2^200148681 is an apocalyptic number.

It is an amenable number.

200148681 is a deficient number, since it is larger than the sum of its proper divisors (67509463).

200148681 is a wasteful number, since it uses less digits than its factorization.

200148681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198311.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 200148681 is about 14147.3913143024. The cubic root of 200148681 is about 584.9484270409.

Adding to 200148681 its reverse (186841002), we get a palindrome (386989683).

The spelling of 200148681 in words is "two hundred million, one hundred forty-eight thousand, six hundred eighty-one".