109781010 has 24 divisors (see below), whose sum is σ = 285430860. Its totient is φ = 29274912.

The previous prime is 109780999. The next prime is 109781057. The reversal of 109781010 is 10187901.

It can be written as a sum of positive squares in 2 ways, for example, as 108555561 + 1225449 = 10419^2 + 1107^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 609805 + ... + 609984.

Almost surely, 2^109781010 is an apocalyptic number.

109781010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109781010 is an abundant number, since it is smaller than the sum of its proper divisors (175649850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109781010 is a wasteful number, since it uses less digits than its factorization.

109781010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219802 (or 1219799 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 27.

The square root of 109781010 is about 10477.6433418971. The cubic root of 109781010 is about 478.8238129458.

The spelling of 109781010 in words is "one hundred nine million, seven hundred eighty-one thousand, ten".