126120961 has 8 divisors (see below), whose sum is σ = 129685248. Its totient is φ = 122580000.

The previous prime is 126120959. The next prime is 126120991. The reversal of 126120961 is 169021621.

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 126120961 - 2¹ = 126120959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126120941) 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, 5436 + ... + 16786.

It is an arithmetic number, because the mean of its divisors is an integer number (16210656).

Almost surely, 2^126120961 is an apocalyptic number.

It is an amenable number.

126120961 is a deficient number, since it is larger than the sum of its proper divisors (3564287).

126120961 is a wasteful number, since it uses less digits than its factorization.

126120961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11663.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 126120961 is about 11230.3588989845. The cubic root of 126120961 is about 501.4901690470.

It can be divided in two parts, 1261 and 20961, that added together give a palindrome (22222).

The spelling of 126120961 in words is "one hundred twenty-six million, one hundred twenty thousand, nine hundred sixty-one".