1248132305 has 24 divisors (see below), whose sum is σ = 1772826432. Its totient is φ = 826330176.

The previous prime is 1248132289. The next prime is 1248132313. The reversal of 1248132305 is 5032318421.

It is a happy number.

It is not a de Polignac number, because 1248132305 - 2⁴ = 1248132289 is a prime.

It is a super-2 number, since 2×1248132305² = 3115668501569226050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8234 + ... + 50636.

It is an arithmetic number, because the mean of its divisors is an integer number (73867768).

Almost surely, 2^1248132305 is an apocalyptic number.

It is an amenable number.

1248132305 is a deficient number, since it is larger than the sum of its proper divisors (524694127).

1248132305 is an equidigital number, since it uses as much as digits as its factorization.

1248132305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42473 (or 42444 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1248132305 is about 35328.9159895970. The cubic root of 1248132305 is about 1076.6805673308.

The spelling of 1248132305 in words is "one billion, two hundred forty-eight million, one hundred thirty-two thousand, three hundred five".