1265057 has 4 divisors (see below), whose sum is σ = 1288980. Its totient is φ = 1241136.

The previous prime is 1265053. The next prime is 1265063. The reversal of 1265057 is 7505621.

1265057 = T₃₈ + T₃₉ + ... + T₁₉₆.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7505621 = 2203 ⋅3407.

It can be written as a sum of positive squares in 2 ways, for example, as 952576 + 312481 = 976^2 + 559^2 .

It is a cyclic number.

It is not a de Polignac number, because 1265057 - 2² = 1265053 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265051) 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, 11882 + ... + 11987.

It is an arithmetic number, because the mean of its divisors is an integer number (322245).

2^1265057 is an apocalyptic number.

It is an amenable number.

1265057 is a deficient number, since it is larger than the sum of its proper divisors (23923).

1265057 is an equidigital number, since it uses as much as digits as its factorization.

1265057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23922.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 1265057 is about 1124.7475272256. The cubic root of 1265057 is about 108.1525336677.

The spelling of 1265057 in words is "one million, two hundred sixty-five thousand, fifty-seven".