1245087 has 12 divisors (see below), whose sum is σ = 1847560. Its totient is φ = 807408.

The previous prime is 1245067. The next prime is 1245091. The reversal of 1245087 is 7805421.

It is not a de Polignac number, because 1245087 - 2¹² = 1240991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1245087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1537 + ... + 2202.

2^1245087 is an apocalyptic number.

1245087 is a deficient number, since it is larger than the sum of its proper divisors (602473).

1245087 is a wasteful number, since it uses less digits than its factorization.

1245087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782 (or 3779 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1245087 is about 1115.8346651722. The cubic root of 1245087 is about 107.5804193628.

The spelling of 1245087 in words is "one million, two hundred forty-five thousand, eighty-seven".