102047161 has 4 divisors (see below), whose sum is σ = 102166272. Its totient is φ = 101928052.

The previous prime is 102047149. The next prime is 102047171. The reversal of 102047161 is 161740201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102047161 - 2¹³ = 102038969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102047171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58261 + ... + 59986.

It is an arithmetic number, because the mean of its divisors is an integer number (25541568).

Almost surely, 2^102047161 is an apocalyptic number.

It is an amenable number.

102047161 is a deficient number, since it is larger than the sum of its proper divisors (119111).

102047161 is an equidigital number, since it uses as much as digits as its factorization.

102047161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119110.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 102047161 is about 10101.8394859550. The cubic root of 102047161 is about 467.3048720980.

Adding to 102047161 its reverse (161740201), we get a palindrome (263787362).

The spelling of 102047161 in words is "one hundred two million, forty-seven thousand, one hundred sixty-one".