31411129 has 2 divisors, whose sum is σ = 31411130. Its totient is φ = 31411128.

The previous prime is 31411117. The next prime is 31411151. The reversal of 31411129 is 92111413.

It is an a-pointer prime, because the next prime (31411151) can be obtained adding 31411129 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28355625 + 3055504 = 5325^2 + 1748^2 .

It is an emirp because it is prime and its reverse (92111413) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31411129 is a prime.

It is not a weakly prime, because it can be changed into another prime (31411229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15705564 + 15705565.

It is an arithmetic number, because the mean of its divisors is an integer number (15705565).

Almost surely, 2^31411129 is an apocalyptic number.

It is an amenable number.

31411129 is a deficient number, since it is larger than the sum of its proper divisors (1).

31411129 is an equidigital number, since it uses as much as digits as its factorization.

31411129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 22.

The square root of 31411129 is about 5604.5632300831. The cubic root of 31411129 is about 315.5206942071.

The spelling of 31411129 in words is "thirty-one million, four hundred eleven thousand, one hundred twenty-nine".