1351091149 has 4 divisors (see below), whose sum is σ = 1387607164. Its totient is φ = 1314575136.

The previous prime is 1351091141. The next prime is 1351091171. The reversal of 1351091149 is 9411901531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 766902249 + 584188900 = 27693^2 + 24170^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351091149 - 2³ = 1351091141 is a prime.

It is a super-2 number, since 2×1351091149² = 3650894585812280402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351091141) 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 in 3 ways as a sum of consecutive naturals, for example, 18257952 + ... + 18258025.

It is an arithmetic number, because the mean of its divisors is an integer number (346901791).

Almost surely, 2^1351091149 is an apocalyptic number.

It is an amenable number.

1351091149 is a deficient number, since it is larger than the sum of its proper divisors (36516015).

1351091149 is an equidigital number, since it uses as much as digits as its factorization.

1351091149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36516014.

The product of its (nonzero) digits is 4860, while the sum is 34.

The square root of 1351091149 is about 36757.1917997009. The cubic root of 1351091149 is about 1105.5071343886.

The spelling of 1351091149 in words is "one billion, three hundred fifty-one million, ninety-one thousand, one hundred forty-nine".