1952161 has 4 divisors (see below), whose sum is σ = 2067012. Its totient is φ = 1837312.

The previous prime is 1952131. The next prime is 1952173. The reversal of 1952161 is 1612591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1612591 = 89 ⋅18119.

It can be written as a sum of positive squares in 2 ways, for example, as 571536 + 1380625 = 756^2 + 1175^2 .

It is a cyclic number.

It is not a de Polignac number, because 1952161 - 2⁵ = 1952129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1952131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57400 + ... + 57433.

It is an arithmetic number, because the mean of its divisors is an integer number (516753).

2^1952161 is an apocalyptic number.

It is an amenable number.

1952161 is a deficient number, since it is larger than the sum of its proper divisors (114851).

1952161 is a wasteful number, since it uses less digits than its factorization.

1952161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114850.

The product of its digits is 540, while the sum is 25.

The square root of 1952161 is about 1397.1975522452. The cubic root of 1952161 is about 124.9794312823.

The spelling of 1952161 in words is "one million, nine hundred fifty-two thousand, one hundred sixty-one".