1148630057 has 8 divisors (see below), whose sum is σ = 1196915400. Its totient is φ = 1100923264.

The previous prime is 1148630053. The next prime is 1148630071. The reversal of 1148630057 is 7500368411.

It can be written as a sum of positive squares in 4 ways, for example, as 245266921 + 903363136 = 15661^2 + 30056^2 .

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 1148630057 - 2² = 1148630053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1148629999 and 1148630026.

It is not an unprimeable number, because it can be changed into a prime (1148630053) 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, 140582 + ... + 148527.

It is an arithmetic number, because the mean of its divisors is an integer number (149614425).

Almost surely, 2^1148630057 is an apocalyptic number.

It is an amenable number.

1148630057 is a deficient number, since it is larger than the sum of its proper divisors (48285343).

1148630057 is a wasteful number, since it uses less digits than its factorization.

1148630057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289275.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1148630057 is about 33891.4451890149. The cubic root of 1148630057 is about 1047.2733661360.

Adding to 1148630057 its reverse (7500368411), we get a palindrome (8648998468).

The spelling of 1148630057 in words is "one billion, one hundred forty-eight million, six hundred thirty thousand, fifty-seven".