161447270 has 8 divisors (see below), whose sum is σ = 290605104. Its totient is φ = 64578904.

The previous prime is 161447269. The next prime is 161447329. The reversal of 161447270 is 72744161.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8072354 + ... + 8072373.

It is an arithmetic number, because the mean of its divisors is an integer number (36325638).

Almost surely, 2^161447270 is an apocalyptic number.

161447270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161447270 is a deficient number, since it is larger than the sum of its proper divisors (129157834).

161447270 is a wasteful number, since it uses less digits than its factorization.

161447270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16144734.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 161447270 is about 12706.1902236666. The cubic root of 161447270 is about 544.5154855546.

It can be divided in two parts, 1614 and 47270, that added together give a palindrome (48884).

The spelling of 161447270 in words is "one hundred sixty-one million, four hundred forty-seven thousand, two hundred seventy".