101272250 has 16 divisors (see below), whose sum is σ = 189582120. Its totient is φ = 40508800.

The previous prime is 101272189. The next prime is 101272271. The reversal of 101272250 is 52272101.

It can be written as a sum of positive squares in 4 ways, for example, as 11950849 + 89321401 = 3457^2 + 9451^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202295 + ... + 202794.

Almost surely, 2^101272250 is an apocalyptic number.

101272250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101272250 is a deficient number, since it is larger than the sum of its proper divisors (88309870).

101272250 is an equidigital number, since it uses as much as digits as its factorization.

101272250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405106 (or 405096 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 101272250 is about 10063.4114494042. The cubic root of 101272250 is about 466.1190145892.

The spelling of 101272250 in words is "one hundred one million, two hundred seventy-two thousand, two hundred fifty".