147640243 has 8 divisors (see below), whose sum is σ = 156672000. Its totient is φ = 138826248.

The previous prime is 147640219. The next prime is 147640253. The reversal of 147640243 is 342046741.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 147640243 - 2⁵ = 147640211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147640253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53043 + ... + 55756.

It is an arithmetic number, because the mean of its divisors is an integer number (19584000).

Almost surely, 2^147640243 is an apocalyptic number.

147640243 is a deficient number, since it is larger than the sum of its proper divisors (9031757).

147640243 is a wasteful number, since it uses less digits than its factorization.

147640243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108881.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 147640243 is about 12150.7301426704. The cubic root of 147640243 is about 528.5283047673.

Adding to 147640243 its reverse (342046741), we get a palindrome (489686984).

The spelling of 147640243 in words is "one hundred forty-seven million, six hundred forty thousand, two hundred forty-three".