161012450 has 48 divisors (see below), whose sum is σ = 313598976. Its totient is φ = 61430400.

The previous prime is 161012413. The next prime is 161012461. The reversal of 161012450 is 54210161.

161012450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112439 + ... + 113861.

It is an arithmetic number, because the mean of its divisors is an integer number (6533312).

Almost surely, 2^161012450 is an apocalyptic number.

161012450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161012450 is a deficient number, since it is larger than the sum of its proper divisors (152586526).

161012450 is a wasteful number, since it uses less digits than its factorization.

161012450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539 (or 1534 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 161012450 is about 12689.0681296934. The cubic root of 161012450 is about 544.0262048543.

The spelling of 161012450 in words is "one hundred sixty-one million, twelve thousand, four hundred fifty".