1428151107 has 4 divisors (see below), whose sum is σ = 1904201480. Its totient is φ = 952100736.

The previous prime is 1428151063. The next prime is 1428151111. The reversal of 1428151107 is 7011518241.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1428151107 - 2⁸ = 1428150851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428151607) 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, 238025182 + ... + 238025187.

It is an arithmetic number, because the mean of its divisors is an integer number (476050370).

Almost surely, 2^1428151107 is an apocalyptic number.

1428151107 is a deficient number, since it is larger than the sum of its proper divisors (476050373).

1428151107 is an equidigital number, since it uses as much as digits as its factorization.

1428151107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476050372.

The product of its (nonzero) digits is 2240, while the sum is 30.

The square root of 1428151107 is about 37790.8865601219. The cubic root of 1428151107 is about 1126.1374128104.

Adding to 1428151107 its reverse (7011518241), we get a palindrome (8439669348).

The spelling of 1428151107 in words is "one billion, four hundred twenty-eight million, one hundred fifty-one thousand, one hundred seven".