16120061 has 4 divisors (see below), whose sum is σ = 16146972. Its totient is φ = 16093152.

The previous prime is 16120057. The next prime is 16120067. The reversal of 16120061 is 16002161.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2540836 + 13579225 = 1594^2 + 3685^2 .

It is a cyclic number.

It is not a de Polignac number, because 16120061 - 2² = 16120057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16120067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12536 + ... + 13761.

It is an arithmetic number, because the mean of its divisors is an integer number (4036743).

Almost surely, 2^16120061 is an apocalyptic number.

It is an amenable number.

16120061 is a deficient number, since it is larger than the sum of its proper divisors (26911).

16120061 is an equidigital number, since it uses as much as digits as its factorization.

16120061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26910.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 16120061 is about 4014.9795765359. The cubic root of 16120061 is about 252.6129207704.

The spelling of 16120061 in words is "sixteen million, one hundred twenty thousand, sixty-one".