237140642 has 6 divisors (see below), whose sum is σ = 355743633. Its totient is φ = 118559432.

The previous prime is 237140641. The next prime is 237140663. The reversal of 237140642 is 246041732.

It can be written as a sum of positive squares in 2 ways, for example, as 159542161 + 77598481 = 12631^2 + 8809^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=10889.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (237140641) 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 2 ways as a sum of consecutive naturals, for example, 16334 + ... + 27222.

Almost surely, 2^237140642 is an apocalyptic number.

237140642 is a deficient number, since it is larger than the sum of its proper divisors (118602991).

237140642 is an frugal number, since it uses more digits than its factorization.

237140642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21780 (or 10891 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 237140642 is about 15399.3714806806. The cubic root of 237140642 is about 618.9686651970.

The spelling of 237140642 in words is "two hundred thirty-seven million, one hundred forty thousand, six hundred forty-two".