109401587 has 2 divisors, whose sum is σ = 109401588. Its totient is φ = 109401586.

The previous prime is 109401583. The next prime is 109401667. The reversal of 109401587 is 785104901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109401587 - 2² = 109401583 is a prime.

It is not a weakly prime, because it can be changed into another prime (109401581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54700793 + 54700794.

It is an arithmetic number, because the mean of its divisors is an integer number (54700794).

Almost surely, 2^109401587 is an apocalyptic number.

109401587 is a deficient number, since it is larger than the sum of its proper divisors (1).

109401587 is an equidigital number, since it uses as much as digits as its factorization.

109401587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 109401587 is about 10459.5213561616. The cubic root of 109401587 is about 478.2715423452.

The spelling of 109401587 in words is "one hundred nine million, four hundred one thousand, five hundred eighty-seven".