161250256 has 10 divisors (see below), whose sum is σ = 312422402. Its totient is φ = 80625120.

The previous prime is 161250241. The next prime is 161250259. The reversal of 161250256 is 652052161.

It can be written as a sum of positive squares in only one way, i.e., 160782400 + 467856 = 12680^2 + 684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161250259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5039055 + ... + 5039086.

Almost surely, 2^161250256 is an apocalyptic number.

161250256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161250256 is a deficient number, since it is larger than the sum of its proper divisors (151172146).

161250256 is a wasteful number, since it uses less digits than its factorization.

161250256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10078149 (or 10078143 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 161250256 is about 12698.4351791864. The cubic root of 161250256 is about 544.2939047659.

The spelling of 161250256 in words is "one hundred sixty-one million, two hundred fifty thousand, two hundred fifty-six".