161100951 has 16 divisors (see below), whose sum is σ = 234707328. Its totient is φ = 97479200.

The previous prime is 161100949. The next prime is 161100971. The reversal of 161100951 is 159001161.

161100951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 161100951 - 2¹ = 161100949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161100971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18736 + ... + 25946.

It is an arithmetic number, because the mean of its divisors is an integer number (14669208).

Almost surely, 2^161100951 is an apocalyptic number.

161100951 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

161100951 is a deficient number, since it is larger than the sum of its proper divisors (73606377).

161100951 is a wasteful number, since it uses less digits than its factorization.

161100951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7902.

The product of its (nonzero) digits is 270, while the sum is 24.

The square root of 161100951 is about 12692.5549437456. The cubic root of 161100951 is about 544.1258618363.

The spelling of 161100951 in words is "one hundred sixty-one million, one hundred thousand, nine hundred fifty-one".