1242334653 has 32 divisors (see below), whose sum is σ = 2007523584. Its totient is φ = 667118592.

The previous prime is 1242334633. The next prime is 1242334663. The reversal of 1242334653 is 3564332421.

It is a happy number.

It is not a de Polignac number, because 1242334653 - 2⁹ = 1242334141 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242334633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267951 + ... + 272547.

It is an arithmetic number, because the mean of its divisors is an integer number (62735112).

Almost surely, 2^1242334653 is an apocalyptic number.

It is an amenable number.

1242334653 is a deficient number, since it is larger than the sum of its proper divisors (765188931).

1242334653 is a wasteful number, since it uses less digits than its factorization.

1242334653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5381.

The product of its digits is 51840, while the sum is 33.

The square root of 1242334653 is about 35246.7679794900. The cubic root of 1242334653 is about 1075.0108967347.

The spelling of 1242334653 in words is "one billion, two hundred forty-two million, three hundred thirty-four thousand, six hundred fifty-three".