1074399961 has 2 divisors, whose sum is σ = 1074399962. Its totient is φ = 1074399960.

The previous prime is 1074399919. The next prime is 1074400001. The reversal of 1074399961 is 1699934701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 747694336 + 326705625 = 27344^2 + 18075^2 .

It is an emirp because it is prime and its reverse (1699934701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1074399961 - 2¹¹ = 1074397913 is a prime.

It is not a weakly prime, because it can be changed into another prime (1074399661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537199980 + 537199981.

It is an arithmetic number, because the mean of its divisors is an integer number (537199981).

Almost surely, 2^1074399961 is an apocalyptic number.

It is an amenable number.

1074399961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1074399961 is an equidigital number, since it uses as much as digits as its factorization.

1074399961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 1074399961 is about 32778.0408352909. The cubic root of 1074399961 is about 1024.2091733869.

The spelling of 1074399961 in words is "one billion, seventy-four million, three hundred ninety-nine thousand, nine hundred sixty-one".