1351949 has 2 divisors, whose sum is σ = 1351950. Its totient is φ = 1351948.

The previous prime is 1351921. The next prime is 1351957. The reversal of 1351949 is 9491531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1177225 + 174724 = 1085^2 + 418^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1351949 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 (1351919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675974 + 675975.

It is an arithmetic number, because the mean of its divisors is an integer number (675975).

2^1351949 is an apocalyptic number.

It is an amenable number.

1351949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351949 is an equidigital number, since it uses as much as digits as its factorization.

1351949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860, while the sum is 32.

The square root of 1351949 is about 1162.7334174264. The cubic root of 1351949 is about 110.5741058837.

The spelling of 1351949 in words is "one million, three hundred fifty-one thousand, nine hundred forty-nine".