1025146 has 4 divisors (see below), whose sum is σ = 1537722.
Its totient is φ = 512572.
The previous prime is 1025137. The next prime is 1025147. The reversal of 1025146 is 6415201.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 1022121 + 3025 = 1011^2 + 55^2
It is not an unprimeable number, because it can be changed into a prime (1025147) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256285 + ... + 256288.
21025146 is an apocalyptic number.
1025146 is a deficient number, since it is larger than the sum of its proper divisors (512576).
1025146 is an equidigital number, since it uses as much as digits as its factorization.
1025146 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 512575.
The product of its (nonzero) digits is 240, while the sum is 19.
The square root of 1025146 is about 1012.4949382590.
The cubic root of 1025146 is about 100.8312707423.
The spelling of 1025146 in words is "one million, twenty-five thousand, one hundred forty-six".