1361257746 has 8 divisors (see below), whose sum is σ = 2722515504. Its totient is φ = 453752580.

The previous prime is 1361257739. The next prime is 1361257763. The reversal of 1361257746 is 6477521631.

It is a happy number.

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

1361257746 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1361257698 and 1361257707.

It is an unprimeable number.

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, 113438140 + ... + 113438151.

It is an arithmetic number, because the mean of its divisors is an integer number (340314438).

Almost surely, 2^1361257746 is an apocalyptic number.

1361257746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1361257746 is a wasteful number, since it uses less digits than its factorization.

1361257746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226876296.

The product of its digits is 211680, while the sum is 42.

The square root of 1361257746 is about 36895.2266018248. The cubic root of 1361257746 is about 1108.2730894020.

The spelling of 1361257746 in words is "one billion, three hundred sixty-one million, two hundred fifty-seven thousand, seven hundred forty-six".