1359053749 has 4 divisors (see below), whose sum is σ = 1359131980. Its totient is φ = 1358975520.

The previous prime is 1359053737. The next prime is 1359053753. The reversal of 1359053749 is 9473509531.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9473509531 = 14957 ⋅633383.

It can be written as a sum of positive squares in 2 ways, for example, as 532778724 + 826275025 = 23082^2 + 28745^2 .

It is a cyclic number.

It is not a de Polignac number, because 1359053749 - 2²¹ = 1356956597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1359053699 and 1359053708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1359053789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54 + ... + 52135.

It is an arithmetic number, because the mean of its divisors is an integer number (339782995).

Almost surely, 2^1359053749 is an apocalyptic number.

It is an amenable number.

1359053749 is a deficient number, since it is larger than the sum of its proper divisors (78231).

1359053749 is an equidigital number, since it uses as much as digits as its factorization.

1359053749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78230.

The product of its (nonzero) digits is 510300, while the sum is 46.

The square root of 1359053749 is about 36865.3461803901. The cubic root of 1359053749 is about 1107.6746354999.

The spelling of 1359053749 in words is "one billion, three hundred fifty-nine million, fifty-three thousand, seven hundred forty-nine".