1401949 has 2 divisors, whose sum is σ = 1401950. Its totient is φ = 1401948.

The previous prime is 1401943. The next prime is 1401971. The reversal of 1401949 is 9491041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1144900 + 257049 = 1070^2 + 507^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401949 - 2⁷ = 1401821 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 (1401943) 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 as a sum of consecutive naturals, namely, 700974 + 700975.

It is an arithmetic number, because the mean of its divisors is an integer number (700975).

2^1401949 is an apocalyptic number.

It is an amenable number.

1401949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401949 is an equidigital number, since it uses as much as digits as its factorization.

1401949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1401949 is about 1184.0392729973. The cubic root of 1401949 is about 111.9207826309.

The spelling of 1401949 in words is "one million, four hundred one thousand, nine hundred forty-nine".