1242553602 has 32 divisors (see below), whose sum is σ = 2635902720. Its totient is φ = 389385360.

The previous prime is 1242553601. The next prime is 1242553603. The reversal of 1242553602 is 2063552421.

It is an interprime number because it is at equal distance from previous prime (1242553601) and next prime (1242553603).

It is a self number, because there is not a number n which added to its sum of digits gives 1242553602.

It is not an unprimeable number, because it can be changed into a prime (1242553601) 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, 26668 + ... + 56535.

It is an arithmetic number, because the mean of its divisors is an integer number (82371960).

Almost surely, 2^1242553602 is an apocalyptic number.

1242553602 is an abundant number, since it is smaller than the sum of its proper divisors (1393349118).

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

1242553602 is a wasteful number, since it uses less digits than its factorization.

1242553602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83358.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1242553602 is about 35249.8737870081. The cubic root of 1242553602 is about 1075.0740463147.

The spelling of 1242553602 in words is "one billion, two hundred forty-two million, five hundred fifty-three thousand, six hundred two".