79540161 has 8 divisors (see below), whose sum is σ = 112292064. Its totient is φ = 49907520.

The previous prime is 79540151. The next prime is 79540163. The reversal of 79540161 is 16104597.

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

It is not a de Polignac number, because 79540161 - 2¹⁴ = 79523777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79540163) 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, 779755 + ... + 779856.

It is an arithmetic number, because the mean of its divisors is an integer number (14036508).

Almost surely, 2^79540161 is an apocalyptic number.

It is an amenable number.

79540161 is a deficient number, since it is larger than the sum of its proper divisors (32751903).

79540161 is a wasteful number, since it uses less digits than its factorization.

79540161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559631.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 79540161 is about 8918.5290827580. The cubic root of 79540161 is about 430.0597735547.

The spelling of 79540161 in words is "seventy-nine million, five hundred forty thousand, one hundred sixty-one".