161362970 has 8 divisors (see below), whose sum is σ = 290453364. Its totient is φ = 64545184.

The previous prime is 161362969. The next prime is 161362987. The reversal of 161362970 is 79263161.

It can be written as a sum of positive squares in 2 ways, for example, as 158331889 + 3031081 = 12583^2 + 1741^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 161362970.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8068139 + ... + 8068158.

Almost surely, 2^161362970 is an apocalyptic number.

161362970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161362970 is a deficient number, since it is larger than the sum of its proper divisors (129090394).

161362970 is a wasteful number, since it uses less digits than its factorization.

161362970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16136304.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 161362970 is about 12702.8725097908. The cubic root of 161362970 is about 544.4206957880.

The spelling of 161362970 in words is "one hundred sixty-one million, three hundred sixty-two thousand, nine hundred seventy".