1248165742 has 16 divisors (see below), whose sum is σ = 1955622240. Its totient is φ = 596709792.

The previous prime is 1248165739. The next prime is 1248165761. The reversal of 1248165742 is 2475618421.

It is a junction number, because it is equal to n+sod(n) for n = 1248165695 and 1248165704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98493 + ... + 110440.

It is an arithmetic number, because the mean of its divisors is an integer number (122226390).

Almost surely, 2^1248165742 is an apocalyptic number.

1248165742 is a deficient number, since it is larger than the sum of its proper divisors (707456498).

1248165742 is a wasteful number, since it uses less digits than its factorization.

1248165742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209067.

The product of its digits is 107520, while the sum is 40.

The square root of 1248165742 is about 35329.3892106841. The cubic root of 1248165742 is about 1076.6901818688.

The spelling of 1248165742 in words is "one billion, two hundred forty-eight million, one hundred sixty-five thousand, seven hundred forty-two".