161361262 has 16 divisors (see below), whose sum is σ = 263001600. Its totient is φ = 73968120.

The previous prime is 161361257. The next prime is 161361269. The reversal of 161361262 is 262163161.

It is a self number, because there is not a number n which added to its sum of digits gives 161361262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161361269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67312 + ... + 69667.

It is an arithmetic number, because the mean of its divisors is an integer number (16437600).

Almost surely, 2^161361262 is an apocalyptic number.

161361262 is a deficient number, since it is larger than the sum of its proper divisors (101640338).

161361262 is a wasteful number, since it uses less digits than its factorization.

161361262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137031.

The product of its digits is 2592, while the sum is 28.

The square root of 161361262 is about 12702.8052807244. The cubic root of 161361262 is about 544.4187749139.

The spelling of 161361262 in words is "one hundred sixty-one million, three hundred sixty-one thousand, two hundred sixty-two".