1428610133 has 4 divisors (see below), whose sum is σ = 1503800160. Its totient is φ = 1353420108.

The previous prime is 1428610121. The next prime is 1428610153. The reversal of 1428610133 is 3310168241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3310168241 = 3079 ⋅1075079.

It is a cyclic number.

It is not a de Polignac number, because 1428610133 - 2²⁰ = 1427561557 is a prime.

It is a super-2 number, since 2×1428610133² = 4081853824220555378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1428610096 and 1428610105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428610153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37594985 + ... + 37595022.

It is an arithmetic number, because the mean of its divisors is an integer number (375950040).

Almost surely, 2^1428610133 is an apocalyptic number.

It is an amenable number.

1428610133 is a deficient number, since it is larger than the sum of its proper divisors (75190027).

1428610133 is an equidigital number, since it uses as much as digits as its factorization.

1428610133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75190026.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1428610133 is about 37796.9593089180. The cubic root of 1428610133 is about 1126.2580515339.

Adding to 1428610133 its reverse (3310168241), we get a palindrome (4738778374).

The spelling of 1428610133 in words is "one billion, four hundred twenty-eight million, six hundred ten thousand, one hundred thirty-three".