1283042457 has 16 divisors (see below), whose sum is σ = 1918572480. Its totient is φ = 847365696.

The previous prime is 1283042381. The next prime is 1283042459. The reversal of 1283042457 is 7542403821.

It is a happy number.

It is not a de Polignac number, because 1283042457 - 2⁷ = 1283042329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1283042459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219168 + ... + 224945.

It is an arithmetic number, because the mean of its divisors is an integer number (119910780).

Almost surely, 2^1283042457 is an apocalyptic number.

It is an amenable number.

1283042457 is a deficient number, since it is larger than the sum of its proper divisors (635530023).

1283042457 is a wasteful number, since it uses less digits than its factorization.

1283042457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444229 (or 444223 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 1283042457 is about 35819.5820327373. The cubic root of 1283042457 is about 1086.6266262466.

The spelling of 1283042457 in words is "one billion, two hundred eighty-three million, forty-two thousand, four hundred fifty-seven".