1242152504 has 8 divisors (see below), whose sum is σ = 2329035960. Its totient is φ = 621076248.

The previous prime is 1242152497. The next prime is 1242152507. The reversal of 1242152504 is 4052512421.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242152507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77634524 + ... + 77634539.

It is an arithmetic number, because the mean of its divisors is an integer number (291129495).

Almost surely, 2^1242152504 is an apocalyptic number.

It is an amenable number.

1242152504 is a deficient number, since it is larger than the sum of its proper divisors (1086883456).

1242152504 is a wasteful number, since it uses less digits than its factorization.

1242152504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155269069 (or 155269065 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1242152504 is about 35244.1839740971. The cubic root of 1242152504 is about 1074.9583554086.

Adding to 1242152504 its reverse (4052512421), we get a palindrome (5294664925).

The spelling of 1242152504 in words is "one billion, two hundred forty-two million, one hundred fifty-two thousand, five hundred four".