1025278 has 8 divisors (see below), whose sum is σ = 1618920. Its totient is φ = 485640.

The previous prime is 1025273. The next prime is 1025279. The reversal of 1025278 is 8725201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1025278³ = 3233301251759354856, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025273) 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, 13453 + ... + 13528.

It is an arithmetic number, because the mean of its divisors is an integer number (202365).

2^1025278 is an apocalyptic number.

1025278 is a deficient number, since it is larger than the sum of its proper divisors (593642).

1025278 is a wasteful number, since it uses less digits than its factorization.

1025278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27002.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1025278 is about 1012.5601216718. The cubic root of 1025278 is about 100.8355983069.

The spelling of 1025278 in words is "one million, twenty-five thousand, two hundred seventy-eight".