120442537 has 2 divisors, whose sum is σ = 120442538. Its totient is φ = 120442536.

The previous prime is 120442489. The next prime is 120442589. The reversal of 120442537 is 735244021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111851776 + 8590761 = 10576^2 + 2931^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120442537 is a prime.

It is not a weakly prime, because it can be changed into another prime (120442337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60221268 + 60221269.

It is an arithmetic number, because the mean of its divisors is an integer number (60221269).

Almost surely, 2^120442537 is an apocalyptic number.

It is an amenable number.

120442537 is a deficient number, since it is larger than the sum of its proper divisors (1).

120442537 is an equidigital number, since it uses as much as digits as its factorization.

120442537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 120442537 is about 10974.6315200101. The cubic root of 120442537 is about 493.8479988784.

Adding to 120442537 its reverse (735244021), we get a palindrome (855686558).

The spelling of 120442537 in words is "one hundred twenty million, four hundred forty-two thousand, five hundred thirty-seven".