1242461136 has 80 divisors (see below), whose sum is σ = 3672780800. Its totient is φ = 354547584.

The previous prime is 1242461131. The next prime is 1242461149. The reversal of 1242461136 is 6311642421.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242461131) 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, 347325 + ... + 350883.

It is an arithmetic number, because the mean of its divisors is an integer number (45909760).

Almost surely, 2^1242461136 is an apocalyptic number.

1242461136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1242461136 is an abundant number, since it is smaller than the sum of its proper divisors (2430319664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242461136 is a wasteful number, since it uses less digits than its factorization.

1242461136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616 (or 4610 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 1242461136 is about 35248.5621834423. The cubic root of 1242461136 is about 1075.0473780453.

The spelling of 1242461136 in words is "one billion, two hundred forty-two million, four hundred sixty-one thousand, one hundred thirty-six".