1242155062 has 16 divisors (see below), whose sum is σ = 1882029600. Its totient is φ = 614822400.

The previous prime is 1242155053. The next prime is 1242155071. The reversal of 1242155062 is 2605512421.

It is an interprime number because it is at equal distance from previous prime (1242155053) and next prime (1242155071).

It is a self number, because there is not a number n which added to its sum of digits gives 1242155062.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347239 + ... + 350797.

It is an arithmetic number, because the mean of its divisors is an integer number (117626850).

Almost surely, 2^1242155062 is an apocalyptic number.

1242155062 is a deficient number, since it is larger than the sum of its proper divisors (639874538).

1242155062 is a wasteful number, since it uses less digits than its factorization.

1242155062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1242155062 is about 35244.2202637539. The cubic root of 1242155062 is about 1074.9590933055.

Adding to 1242155062 its reverse (2605512421), we get a palindrome (3847667483).

The spelling of 1242155062 in words is "one billion, two hundred forty-two million, one hundred fifty-five thousand, sixty-two".