109420061 has 2 divisors, whose sum is σ = 109420062. Its totient is φ = 109420060.

The previous prime is 109420057. The next prime is 109420097. The reversal of 109420061 is 160024901.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88717561 + 20702500 = 9419^2 + 4550^2 .

It is a cyclic number.

It is not a de Polignac number, because 109420061 - 2² = 109420057 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109420561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54710030 + 54710031.

It is an arithmetic number, because the mean of its divisors is an integer number (54710031).

Almost surely, 2^109420061 is an apocalyptic number.

It is an amenable number.

109420061 is a deficient number, since it is larger than the sum of its proper divisors (1).

109420061 is an equidigital number, since it uses as much as digits as its factorization.

109420061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 109420061 is about 10460.4044376879. The cubic root of 109420061 is about 478.2984617938.

Adding to 109420061 its reverse (160024901), we get a palindrome (269444962).

The spelling of 109420061 in words is "one hundred nine million, four hundred twenty thousand, sixty-one".