1237149349 has 4 divisors (see below), whose sum is σ = 1249903564. Its totient is φ = 1224395136.

The previous prime is 1237149343. The next prime is 1237149359. The reversal of 1237149349 is 9439417321.

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 935258724 + 301890625 = 30582^2 + 17375^2 .

It is a cyclic number.

It is not a de Polignac number, because 1237149349 - 2³ = 1237149341 is a prime.

It is a super-2 number, since 2×1237149349² = 3061077023462247602, 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 (1237149341) 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, 6376962 + ... + 6377155.

It is an arithmetic number, because the mean of its divisors is an integer number (312475891).

Almost surely, 2^1237149349 is an apocalyptic number.

It is an amenable number.

1237149349 is a deficient number, since it is larger than the sum of its proper divisors (12754215).

1237149349 is an equidigital number, since it uses as much as digits as its factorization.

1237149349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12754214.

The product of its digits is 163296, while the sum is 43.

The square root of 1237149349 is about 35173.1339092780. The cubic root of 1237149349 is about 1073.5131704783.

The spelling of 1237149349 in words is "one billion, two hundred thirty-seven million, one hundred forty-nine thousand, three hundred forty-nine".