1020474161 has 4 divisors (see below), whose sum is σ = 1166256192. Its totient is φ = 874692132.

The previous prime is 1020474121. The next prime is 1020474163. The reversal of 1020474161 is 1614740201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1614740201 = 167 ⋅9669103.

It is a cyclic number.

It is not a de Polignac number, because 1020474161 - 2¹⁴ = 1020457777 is a prime.

It is a super-4 number, since 4×1020474161⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020474161.

It is not an unprimeable number, because it can be changed into a prime (1020474163) 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, 72891005 + ... + 72891018.

It is an arithmetic number, because the mean of its divisors is an integer number (291564048).

Almost surely, 2^1020474161 is an apocalyptic number.

It is an amenable number.

1020474161 is a deficient number, since it is larger than the sum of its proper divisors (145782031).

1020474161 is an equidigital number, since it uses as much as digits as its factorization.

1020474161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145782030.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1020474161 is about 31944.8612612420. The cubic root of 1020474161 is about 1006.7786661907.

The spelling of 1020474161 in words is "one billion, twenty million, four hundred seventy-four thousand, one hundred sixty-one".