130862161 has 4 divisors (see below), whose sum is σ = 130972324. Its totient is φ = 130752000.

The previous prime is 130862153. The next prime is 130862183. The reversal of 130862161 is 161268031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161268031 = 983 ⋅164057.

It can be written as a sum of positive squares in 2 ways, for example, as 36675136 + 94187025 = 6056^2 + 9705^2 .

It is a cyclic number.

It is not a de Polignac number, because 130862161 - 2³ = 130862153 is a prime.

It is the 11440-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130862261) by changing a digit.

It is a nontrivial repunit in base 11439.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53280 + ... + 55681.

It is an arithmetic number, because the mean of its divisors is an integer number (32743081).

Almost surely, 2^130862161 is an apocalyptic number.

It is an amenable number.

130862161 is a deficient number, since it is larger than the sum of its proper divisors (110163).

130862161 is a wasteful number, since it uses less digits than its factorization.

130862161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110162.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 130862161 is about 11439.5000327812. The cubic root of 130862161 is about 507.6971154668.

The spelling of 130862161 in words is "one hundred thirty million, eight hundred sixty-two thousand, one hundred sixty-one".