1012357 has 4 divisors (see below), whose sum is σ = 1039756. Its totient is φ = 984960.

The previous prime is 1012321. The next prime is 1012369. The reversal of 1012357 is 7532101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7532101 = 31 ⋅242971.

It can be written as a sum of positive squares in 2 ways, for example, as 776161 + 236196 = 881^2 + 486^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012357 - 2⁷ = 1012229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012307) 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, 13644 + ... + 13717.

It is an arithmetic number, because the mean of its divisors is an integer number (259939).

2^1012357 is an apocalyptic number.

It is an amenable number.

1012357 is a deficient number, since it is larger than the sum of its proper divisors (27399).

1012357 is an equidigital number, since it uses as much as digits as its factorization.

1012357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27398.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 1012357 is about 1006.1595300945. The cubic root of 1012357 is about 100.4102149361.

Adding to 1012357 its reverse (7532101), we get a palindrome (8544458).

It can be divided in two parts, 101235 and 7, that multiplied together give a triangular number (708645 = T₁₁₉₀).

The spelling of 1012357 in words is "one million, twelve thousand, three hundred fifty-seven".