161201707 has 2 divisors, whose sum is σ = 161201708. Its totient is φ = 161201706.

The previous prime is 161201699. The next prime is 161201717. The reversal of 161201707 is 707102161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161201707 - 2³ = 161201699 is a prime.

It is not a weakly prime, because it can be changed into another prime (161201717) 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, 80600853 + 80600854.

It is an arithmetic number, because the mean of its divisors is an integer number (80600854).

Almost surely, 2^161201707 is an apocalyptic number.

161201707 is a deficient number, since it is larger than the sum of its proper divisors (1).

161201707 is an equidigital number, since it uses as much as digits as its factorization.

161201707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 161201707 is about 12696.5234217876. The cubic root of 161201707 is about 544.2392742021.

Adding to 161201707 its reverse (707102161), we get a palindrome (868303868).

The spelling of 161201707 in words is "one hundred sixty-one million, two hundred one thousand, seven hundred seven".