1242923351 has 8 divisors (see below), whose sum is σ = 1288913184. Its totient is φ = 1197586080.

The previous prime is 1242923347. The next prime is 1242923387. The reversal of 1242923351 is 1533292421.

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 1242923351 - 2² = 1242923347 is a prime.

It is a super-2 number, since 2×1242923351² = 3089716912922138402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242926351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159260 + ... + 166881.

It is an arithmetic number, because the mean of its divisors is an integer number (161114148).

Almost surely, 2^1242923351 is an apocalyptic number.

1242923351 is a deficient number, since it is larger than the sum of its proper divisors (45989833).

1242923351 is a wasteful number, since it uses less digits than its factorization.

1242923351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326281.

The product of its digits is 12960, while the sum is 32.

The square root of 1242923351 is about 35255.1180823437. The cubic root of 1242923351 is about 1075.1806730042.

The spelling of 1242923351 in words is "one billion, two hundred forty-two million, nine hundred twenty-three thousand, three hundred fifty-one".