1339748551 has 8 divisors (see below), whose sum is σ = 1420917984. Its totient is φ = 1260489120.

The previous prime is 1339748533. The next prime is 1339748561. The reversal of 1339748551 is 1558479331.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1339748551 - 2¹¹ = 1339746503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1339748561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476056 + ... + 478861.

It is an arithmetic number, because the mean of its divisors is an integer number (177614748).

Almost surely, 2^1339748551 is an apocalyptic number.

1339748551 is a deficient number, since it is larger than the sum of its proper divisors (81169433).

1339748551 is an equidigital number, since it uses as much as digits as its factorization.

1339748551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955001.

The product of its digits is 453600, while the sum is 46.

The square root of 1339748551 is about 36602.5757426988. The cubic root of 1339748551 is about 1102.4048079500.

The spelling of 1339748551 in words is "one billion, three hundred thirty-nine million, seven hundred forty-eight thousand, five hundred fifty-one".