1201352129 has 2 divisors, whose sum is σ = 1201352130. Its totient is φ = 1201352128.

The previous prime is 1201352063. The next prime is 1201352147. The reversal of 1201352129 is 9212531021.

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., 796537729 + 404814400 = 28223^2 + 20120^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201352129 - 2²⁴ = 1184574913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201352098 and 1201352107.

It is not a weakly prime, because it can be changed into another prime (1201352429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600676064 + 600676065.

It is an arithmetic number, because the mean of its divisors is an integer number (600676065).

Almost surely, 2^1201352129 is an apocalyptic number.

It is an amenable number.

1201352129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201352129 is an equidigital number, since it uses as much as digits as its factorization.

1201352129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1201352129 is about 34660.5269579099. The cubic root of 1201352129 is about 1063.0575447762.

The spelling of 1201352129 in words is "one billion, two hundred one million, three hundred fifty-two thousand, one hundred twenty-nine".