1242514019 has 16 divisors (see below), whose sum is σ = 1305469440. Its totient is φ = 1181040000.

The previous prime is 1242513997. The next prime is 1242514051. The reversal of 1242514019 is 9104152421.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242514019 is a prime.

It is a super-2 number, since 2×1242514019² = 3087682174823064722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 1242513982 and 1242514000.

It is not an unprimeable number, because it can be changed into a prime (1242514919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 558329 + ... + 560549.

It is an arithmetic number, because the mean of its divisors is an integer number (81591840).

Almost surely, 2^1242514019 is an apocalyptic number.

1242514019 is a deficient number, since it is larger than the sum of its proper divisors (62955421).

1242514019 is a wasteful number, since it uses less digits than its factorization.

1242514019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1242514019 is about 35249.3123195333. The cubic root of 1242514019 is about 1075.0626302793.

The spelling of 1242514019 in words is "one billion, two hundred forty-two million, five hundred fourteen thousand, nineteen".