1457861 has 2 divisors, whose sum is σ = 1457862. Its totient is φ = 1457860.

The previous prime is 1457857. The next prime is 1457867. The reversal of 1457861 is 1687541.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 940900 + 516961 = 970^2 + 719^2 .

It is a cyclic number.

It is not a de Polignac number, because 1457861 - 2² = 1457857 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1457867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728930 + 728931.

It is an arithmetic number, because the mean of its divisors is an integer number (728931).

2^1457861 is an apocalyptic number.

It is an amenable number.

1457861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457861 is an equidigital number, since it uses as much as digits as its factorization.

1457861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 32.

The square root of 1457861 is about 1207.4191484319. The cubic root of 1457861 is about 113.3892908981.

It can be divided in two parts, 14 and 57861, that added together give a palindrome (57875).

The spelling of 1457861 in words is "one million, four hundred fifty-seven thousand, eight hundred sixty-one".