106251247 has 4 divisors (see below), whose sum is σ = 106511440. Its totient is φ = 105991056.

The previous prime is 106251239. The next prime is 106251251. The reversal of 106251247 is 742152601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742152601 = 29 ⋅25591469.

It is a cyclic number.

It is not a de Polignac number, because 106251247 - 2³ = 106251239 is a prime.

It is a super-2 number, since 2×106251247² = 22578654978110018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106251217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129483 + ... + 130300.

It is an arithmetic number, because the mean of its divisors is an integer number (26627860).

Almost surely, 2^106251247 is an apocalyptic number.

106251247 is a deficient number, since it is larger than the sum of its proper divisors (260193).

106251247 is an equidigital number, since it uses as much as digits as its factorization.

106251247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260192.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 106251247 is about 10307.8245522516. The cubic root of 106251247 is about 473.6359715167.

The spelling of 106251247 in words is "one hundred six million, two hundred fifty-one thousand, two hundred forty-seven".