1242014451 has 16 divisors (see below), whose sum is σ = 1698069120. Its totient is φ = 807065280.

The previous prime is 1242014447. The next prime is 1242014461. The reversal of 1242014451 is 1544102421.

It is not a de Polignac number, because 1242014451 - 2² = 1242014447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1242014461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53535 + ... + 73143.

It is an arithmetic number, because the mean of its divisors is an integer number (106129320).

Almost surely, 2^1242014451 is an apocalyptic number.

1242014451 is a deficient number, since it is larger than the sum of its proper divisors (456054669).

1242014451 is a wasteful number, since it uses less digits than its factorization.

1242014451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20146.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1242014451 is about 35242.2253979512. The cubic root of 1242014451 is about 1074.9185302600.

Adding to 1242014451 its reverse (1544102421), we get a palindrome (2786116872).

The spelling of 1242014451 in words is "one billion, two hundred forty-two million, fourteen thousand, four hundred fifty-one".