1248465331 has 4 divisors (see below), whose sum is σ = 1249187472. Its totient is φ = 1247743192.

The previous prime is 1248465307. The next prime is 1248465347. The reversal of 1248465331 is 1335648421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1335648421 = 14557 ⋅91753.

It is a cyclic number.

It is not a de Polignac number, because 1248465331 - 2⁵ = 1248465299 is a prime.

It is a super-2 number, since 2×1248465331² = 3117331365417879122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1248465931) 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, 358471 + ... + 361936.

It is an arithmetic number, because the mean of its divisors is an integer number (312296868).

Almost surely, 2^1248465331 is an apocalyptic number.

1248465331 is a deficient number, since it is larger than the sum of its proper divisors (722141).

1248465331 is an equidigital number, since it uses as much as digits as its factorization.

1248465331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722140.

The product of its digits is 69120, while the sum is 37.

The square root of 1248465331 is about 35333.6288965625. The cubic root of 1248465331 is about 1076.7763185946.

It can be divided in two parts, 12484 and 65331, that added together give a triangular number (77815 = T₃₉₄).

The spelling of 1248465331 in words is "one billion, two hundred forty-eight million, four hundred sixty-five thousand, three hundred thirty-one".