1361957 has 2 divisors, whose sum is σ = 1361958. Its totient is φ = 1361956.

The previous prime is 1361953. The next prime is 1361959. The reversal of 1361957 is 7591631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1359556 + 2401 = 1166^2 + 49^2 .

It is an emirp because it is prime and its reverse (7591631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1361957 - 2² = 1361953 is a prime.

Together with 1361959, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680978 + 680979.

It is an arithmetic number, because the mean of its divisors is an integer number (680979).

2^1361957 is an apocalyptic number.

It is an amenable number.

1361957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361957 is an equidigital number, since it uses as much as digits as its factorization.

1361957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 32.

The square root of 1361957 is about 1167.0291341693. The cubic root of 1361957 is about 110.8462823672.

The spelling of 1361957 in words is "one million, three hundred sixty-one thousand, nine hundred fifty-seven".