147672161 has 32 divisors (see below), whose sum is σ = 192675840. Its totient is φ = 109905984.

The previous prime is 147672157. The next prime is 147672179. The reversal of 147672161 is 161276741.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 147672161 - 2² = 147672157 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (147672131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385376 + ... + 385758.

It is an arithmetic number, because the mean of its divisors is an integer number (6021120).

Almost surely, 2^147672161 is an apocalyptic number.

It is an amenable number.

147672161 is a deficient number, since it is larger than the sum of its proper divisors (45003679).

147672161 is a wasteful number, since it uses less digits than its factorization.

147672161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645.

The product of its digits is 14112, while the sum is 35.

The square root of 147672161 is about 12152.0434907056. The cubic root of 147672161 is about 528.5663891238.

It can be divided in two parts, 1476 and 72161, that added together give a palindrome (73637).

The spelling of 147672161 in words is "one hundred forty-seven million, six hundred seventy-two thousand, one hundred sixty-one".