1361257229 has 8 divisors (see below), whose sum is σ = 1367796672. Its totient is φ = 1354728640.

The previous prime is 1361257189. The next prime is 1361257237. The reversal of 1361257229 is 9227521631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1361257229 is a prime.

It is a Duffinian number.

1361257229 is a modest number, since divided by 257229 gives 1361 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1361257192 and 1361257201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361257259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356042 + ... + 359844.

It is an arithmetic number, because the mean of its divisors is an integer number (170974584).

Almost surely, 2^1361257229 is an apocalyptic number.

It is an amenable number.

1361257229 is a deficient number, since it is larger than the sum of its proper divisors (6539443).

1361257229 is a wasteful number, since it uses less digits than its factorization.

1361257229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5427.

The product of its digits is 45360, while the sum is 38.

The square root of 1361257229 is about 36895.2195954977. The cubic root of 1361257229 is about 1108.2729490962.

The spelling of 1361257229 in words is "one billion, three hundred sixty-one million, two hundred fifty-seven thousand, two hundred twenty-nine".