161414740 has 12 divisors (see below), whose sum is σ = 338970996. Its totient is φ = 64565888.

The previous prime is 161414731. The next prime is 161414741. The reversal of 161414740 is 47414161.

It can be written as a sum of positive squares in 2 ways, for example, as 124277904 + 37136836 = 11148^2 + 6094^2 .

It is a super-3 number, since 3×161414740³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161414699 and 161414708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161414741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4035349 + ... + 4035388.

It is an arithmetic number, because the mean of its divisors is an integer number (28247583).

Almost surely, 2^161414740 is an apocalyptic number.

161414740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161414740 is an abundant number, since it is smaller than the sum of its proper divisors (177556256).

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

161414740 is a wasteful number, since it uses less digits than its factorization.

161414740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8070746 (or 8070744 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 161414740 is about 12704.9100744555. The cubic root of 161414740 is about 544.4789116347.

The spelling of 161414740 in words is "one hundred sixty-one million, four hundred fourteen thousand, seven hundred forty".