126002161 has 8 divisors (see below), whose sum is σ = 128743424. Its totient is φ = 123288480.

The previous prime is 126002141. The next prime is 126002171. The reversal of 126002161 is 161200621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126002161 - 2¹⁷ = 125871089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126002141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2476 + ... + 16066.

It is an arithmetic number, because the mean of its divisors is an integer number (16092928).

Almost surely, 2^126002161 is an apocalyptic number.

It is an amenable number.

126002161 is a deficient number, since it is larger than the sum of its proper divisors (2741263).

126002161 is a wasteful number, since it uses less digits than its factorization.

126002161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13791.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 126002161 is about 11225.0684184997. The cubic root of 126002161 is about 501.3326595480.

Adding to 126002161 its reverse (161200621), we get a palindrome (287202782).

The spelling of 126002161 in words is "one hundred twenty-six million, two thousand, one hundred sixty-one".