2442120157 has 2 divisors, whose sum is σ = 2442120158. Its totient is φ = 2442120156.

The previous prime is 2442120143. The next prime is 2442120181. The reversal of 2442120157 is 7510212442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2137582756 + 304537401 = 46234^2 + 17451^2 .

It is a cyclic number.

It is not a de Polignac number, because 2442120157 - 2⁷ = 2442120029 is a prime.

It is a super-2 number, since 2×2442120157² = 11927901722451409298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2442123157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1221060078 + 1221060079.

It is an arithmetic number, because the mean of its divisors is an integer number (1221060079).

Almost surely, 2^2442120157 is an apocalyptic number.

It is an amenable number.

2442120157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2442120157 is an equidigital number, since it uses as much as digits as its factorization.

2442120157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 2442120157 is about 49417.8121429915. The cubic root of 2442120157 is about 1346.6529167782.

Adding to 2442120157 its reverse (7510212442), we get a palindrome (9952332599).

The spelling of 2442120157 in words is "two billion, four hundred forty-two million, one hundred twenty thousand, one hundred fifty-seven".