1428061517 has 8 divisors (see below), whose sum is σ = 1450151136. Its totient is φ = 1405994832.

The previous prime is 1428061507. The next prime is 1428061541. The reversal of 1428061517 is 7151608241.

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 1428061517 - 2⁴ = 1428061501 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 (1428061507) 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, 153398 + ... + 162440.

It is an arithmetic number, because the mean of its divisors is an integer number (181268892).

Almost surely, 2^1428061517 is an apocalyptic number.

It is an amenable number.

1428061517 is a deficient number, since it is larger than the sum of its proper divisors (22089619).

1428061517 is an equidigital number, since it uses as much as digits as its factorization.

1428061517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11467.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 1428061517 is about 37789.7012028410. The cubic root of 1428061517 is about 1126.1138642377.

Adding to 1428061517 its reverse (7151608241), we get a palindrome (8579669758).

The spelling of 1428061517 in words is "one billion, four hundred twenty-eight million, sixty-one thousand, five hundred seventeen".