101252709 has 12 divisors (see below), whose sum is σ = 147622176. Its totient is φ = 66870312.

The previous prime is 101252689. The next prime is 101252747. The reversal of 101252709 is 907252101.

It is not a de Polignac number, because 101252709 - 2⁵ = 101252677 is a prime.

It is a super-2 number, since 2×101252709² = 20504222159677362, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101252759) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51609 + ... + 53534.

It is an arithmetic number, because the mean of its divisors is an integer number (12301848).

Almost surely, 2^101252709 is an apocalyptic number.

It is an amenable number.

101252709 is a deficient number, since it is larger than the sum of its proper divisors (46369467).

101252709 is a wasteful number, since it uses less digits than its factorization.

101252709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105256 (or 105253 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 101252709 is about 10062.4405091409. The cubic root of 101252709 is about 466.0890326426.

The spelling of 101252709 in words is "one hundred one million, two hundred fifty-two thousand, seven hundred nine".