129374101 has 2 divisors, whose sum is σ = 129374102. Its totient is φ = 129374100.

The previous prime is 129374087. The next prime is 129374117. The reversal of 129374101 is 101473921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121022001 + 8352100 = 11001^2 + 2890^2 .

It is an emirp because it is prime and its reverse (101473921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129374101 - 2¹³ = 129365909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129374101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129374801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64687050 + 64687051.

It is an arithmetic number, because the mean of its divisors is an integer number (64687051).

Almost surely, 2^129374101 is an apocalyptic number.

It is an amenable number.

129374101 is a deficient number, since it is larger than the sum of its proper divisors (1).

129374101 is an equidigital number, since it uses as much as digits as its factorization.

129374101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 129374101 is about 11374.2736471390. The cubic root of 129374101 is about 505.7653994831.

The spelling of 129374101 in words is "one hundred twenty-nine million, three hundred seventy-four thousand, one hundred one".