109457287 has 2 divisors, whose sum is σ = 109457288. Its totient is φ = 109457286.

The previous prime is 109457279. The next prime is 109457323. The reversal of 109457287 is 782754901.

It is a weak prime.

It is an emirp because it is prime and its reverse (782754901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109457287 - 2³ = 109457279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109458287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54728643 + 54728644.

It is an arithmetic number, because the mean of its divisors is an integer number (54728644).

Almost surely, 2^109457287 is an apocalyptic number.

109457287 is a deficient number, since it is larger than the sum of its proper divisors (1).

109457287 is an equidigital number, since it uses as much as digits as its factorization.

109457287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 109457287 is about 10462.1836630791. The cubic root of 109457287 is about 478.3526965767.

The spelling of 109457287 in words is "one hundred nine million, four hundred fifty-seven thousand, two hundred eighty-seven".