101227640 has 32 divisors (see below), whose sum is σ = 230888880. Its totient is φ = 39935232.

The previous prime is 101227631. The next prime is 101227667. The reversal of 101227640 is 46722101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14414 + ... + 20253.

Almost surely, 2^101227640 is an apocalyptic number.

101227640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101227640 is an abundant number, since it is smaller than the sum of its proper divisors (129661240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101227640 is a wasteful number, since it uses less digits than its factorization.

101227640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34751 (or 34747 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 101227640 is about 10061.1947600670. The cubic root of 101227640 is about 466.0505633825.

Adding to 101227640 its reverse (46722101), we get a palindrome (147949741).

The spelling of 101227640 in words is "one hundred one million, two hundred twenty-seven thousand, six hundred forty".