107128429 has 2 divisors, whose sum is σ = 107128430. Its totient is φ = 107128428.

The previous prime is 107128391. The next prime is 107128433. The reversal of 107128429 is 924821701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107122500 + 5929 = 10350^2 + 77^2 .

It is a cyclic number.

It is not a de Polignac number, because 107128429 - 2²³ = 98739821 is a prime.

It is a super-2 number, since 2×107128429² = 22953000600016082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 107128394 and 107128403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (107128459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53564214 + 53564215.

It is an arithmetic number, because the mean of its divisors is an integer number (53564215).

Almost surely, 2^107128429 is an apocalyptic number.

It is an amenable number.

107128429 is a deficient number, since it is larger than the sum of its proper divisors (1).

107128429 is an equidigital number, since it uses as much as digits as its factorization.

107128429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 107128429 is about 10350.2864211576. The cubic root of 107128429 is about 474.9358051751.

It can be divided in two parts, 107 and 128429, that multiplied together give a triangular number (13741903 = T₅₂₄₂).

The spelling of 107128429 in words is "one hundred seven million, one hundred twenty-eight thousand, four hundred twenty-nine".