161401254 has 16 divisors (see below), whose sum is σ = 368917248. Its totient is φ = 46114632.

The previous prime is 161401249. The next prime is 161401343. The reversal of 161401254 is 452104161.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1921402 + ... + 1921485.

It is an arithmetic number, because the mean of its divisors is an integer number (23057328).

Almost surely, 2^161401254 is an apocalyptic number.

161401254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161401254 is an abundant number, since it is smaller than the sum of its proper divisors (207515994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161401254 is a wasteful number, since it uses less digits than its factorization.

161401254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842899.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 161401254 is about 12704.3793236821. The cubic root of 161401254 is about 544.4637477013.

The spelling of 161401254 in words is "one hundred sixty-one million, four hundred one thousand, two hundred fifty-four".