1952897129 has 2 divisors, whose sum is σ = 1952897130. Its totient is φ = 1952897128.

The previous prime is 1952897099. The next prime is 1952897137. The reversal of 1952897129 is 9217982591.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1847280400 + 105616729 = 42980^2 + 10277^2 .

It is an emirp because it is prime and its reverse (9217982591) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1952897129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1952897029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 976448564 + 976448565.

It is an arithmetic number, because the mean of its divisors is an integer number (976448565).

Almost surely, 2^1952897129 is an apocalyptic number.

It is an amenable number.

1952897129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1952897129 is an equidigital number, since it uses as much as digits as its factorization.

1952897129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 53.

The square root of 1952897129 is about 44191.5956828898. The cubic root of 1952897129 is about 1249.9513856293.

The spelling of 1952897129 in words is "one billion, nine hundred fifty-two million, eight hundred ninety-seven thousand, one hundred twenty-nine".