1242610245 has 24 divisors (see below), whose sum is σ = 2159570400. Its totient is φ = 660967776.

The previous prime is 1242610211. The next prime is 1242610273. The reversal of 1242610245 is 5420162421.

1242610245 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 610 + 2 + 45 = 666.

It is not a de Polignac number, because 1242610245 - 2⁹ = 1242609733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19375 + ... + 53484.

It is an arithmetic number, because the mean of its divisors is an integer number (89982100).

Almost surely, 2^1242610245 is an apocalyptic number.

1242610245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1242610245 is a deficient number, since it is larger than the sum of its proper divisors (916960155).

1242610245 is a wasteful number, since it uses less digits than its factorization.

1242610245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73249 (or 73246 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1242610245 is about 35250.6772275371. The cubic root of 1242610245 is about 1075.0903821610.

Adding to 1242610245 its reverse (5420162421), we get a palindrome (6662772666).

The spelling of 1242610245 in words is "one billion, two hundred forty-two million, six hundred ten thousand, two hundred forty-five".