1242464135 has 16 divisors (see below), whose sum is σ = 1636250112. Its totient is φ = 898192800.

The previous prime is 1242464099. The next prime is 1242464137. The reversal of 1242464135 is 5314642421.

It is not a de Polignac number, because 1242464135 - 2¹⁰ = 1242463111 is a prime.

It is a super-2 number, since 2×1242464135² = 3087434253522596450, 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 (1242464137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58451 + ... + 76820.

It is an arithmetic number, because the mean of its divisors is an integer number (102265632).

Almost surely, 2^1242464135 is an apocalyptic number.

1242464135 is a deficient number, since it is larger than the sum of its proper divisors (393785977).

1242464135 is a wasteful number, since it uses less digits than its factorization.

1242464135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135454.

The product of its digits is 23040, while the sum is 32.

The square root of 1242464135 is about 35248.6047241589. The cubic root of 1242464135 is about 1075.0482430125.

The spelling of 1242464135 in words is "one billion, two hundred forty-two million, four hundred sixty-four thousand, one hundred thirty-five".