107257287 has 4 divisors (see below), whose sum is σ = 143009720. Its totient is φ = 71504856.

The previous prime is 107257279. The next prime is 107257289. The reversal of 107257287 is 782752701.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 107257287 - 2³ = 107257279 is a prime.

It is a super-2 number, since 2×107257287² = 23008251229200738, 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 (107257289) 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, 17876212 + ... + 17876217.

It is an arithmetic number, because the mean of its divisors is an integer number (35752430).

Almost surely, 2^107257287 is an apocalyptic number.

107257287 is a deficient number, since it is larger than the sum of its proper divisors (35752433).

107257287 is an equidigital number, since it uses as much as digits as its factorization.

107257287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35752432.

The product of its (nonzero) digits is 54880, while the sum is 39.

The square root of 107257287 is about 10356.5094023035. The cubic root of 107257287 is about 475.1261522733.

The spelling of 107257287 in words is "one hundred seven million, two hundred fifty-seven thousand, two hundred eighty-seven".