161061007 has 4 divisors (see below), whose sum is σ = 161138376. Its totient is φ = 160983640.

The previous prime is 161060989. The next prime is 161061029. The reversal of 161061007 is 700160161.

161061007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161061007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161065007) 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, 35473 + ... + 39754.

It is an arithmetic number, because the mean of its divisors is an integer number (40284594).

Almost surely, 2^161061007 is an apocalyptic number.

161061007 is a deficient number, since it is larger than the sum of its proper divisors (77369).

161061007 is an equidigital number, since it uses as much as digits as its factorization.

161061007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77368.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 161061007 is about 12690.9813253349. The cubic root of 161061007 is about 544.0808872208.

The spelling of 161061007 in words is "one hundred sixty-one million, sixty-one thousand, seven".