1051349369 has 4 divisors (see below), whose sum is σ = 1201542144. Its totient is φ = 901156596.

The previous prime is 1051349359. The next prime is 1051349381. The reversal of 1051349369 is 9639431501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9639431501 = 7 ⋅1377061643.

It is a cyclic number.

It is not a de Polignac number, because 1051349369 - 2¹⁶ = 1051283833 is a prime.

It is a super-2 number, since 2×1051349369² = 2210670991393396322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051349359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75096377 + ... + 75096390.

It is an arithmetic number, because the mean of its divisors is an integer number (300385536).

Almost surely, 2^1051349369 is an apocalyptic number.

It is an amenable number.

1051349369 is a deficient number, since it is larger than the sum of its proper divisors (150192775).

1051349369 is an equidigital number, since it uses as much as digits as its factorization.

1051349369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150192774.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 1051349369 is about 32424.5180226322. The cubic root of 1051349369 is about 1016.8315652740.

The spelling of 1051349369 in words is "one billion, fifty-one million, three hundred forty-nine thousand, three hundred sixty-nine".