161452742 has 16 divisors (see below), whose sum is σ = 266814864. Its totient is φ = 72660000.

The previous prime is 161452741. The next prime is 161452751. The reversal of 161452742 is 247254161.

It is a junction number, because it is equal to n+sod(n) for n = 161452699 and 161452708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161452741) 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, 34109 + ... + 38552.

It is an arithmetic number, because the mean of its divisors is an integer number (16675929).

Almost surely, 2^161452742 is an apocalyptic number.

161452742 is a deficient number, since it is larger than the sum of its proper divisors (105362122).

161452742 is a wasteful number, since it uses less digits than its factorization.

161452742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72775.

The product of its digits is 13440, while the sum is 32.

The square root of 161452742 is about 12706.4055499579. The cubic root of 161452742 is about 544.5216373156.

The spelling of 161452742 in words is "one hundred sixty-one million, four hundred fifty-two thousand, seven hundred forty-two".