1148022457 has 4 divisors (see below), whose sum is σ = 1151051920. Its totient is φ = 1144992996.

The previous prime is 1148022439. The next prime is 1148022467. The reversal of 1148022457 is 7542208411.

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: 7542208411 = 1889 ⋅3992699.

It is a cyclic number.

It is not a de Polignac number, because 1148022457 - 2²³ = 1139633849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1148022467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1514163 + ... + 1514920.

It is an arithmetic number, because the mean of its divisors is an integer number (287762980).

Almost surely, 2^1148022457 is an apocalyptic number.

It is an amenable number.

1148022457 is a deficient number, since it is larger than the sum of its proper divisors (3029463).

1148022457 is an equidigital number, since it uses as much as digits as its factorization.

1148022457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029462.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 1148022457 is about 33882.4800892733. The cubic root of 1148022457 is about 1047.0886720514.

The spelling of 1148022457 in words is "one billion, one hundred forty-eight million, twenty-two thousand, four hundred fifty-seven".