152661520241 has 4 divisors (see below), whose sum is σ = 152663608692. Its totient is φ = 152659431792.

The previous prime is 152661520213. The next prime is 152661520267. The reversal of 152661520241 is 142025166251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142025166251 = 317921 ⋅446731.

It can be written as a sum of positive squares in 2 ways, for example, as 35289501025 + 117372019216 = 187855^2 + 342596^2 .

It is a cyclic number.

It is not a de Polignac number, because 152661520241 - 2¹⁴ = 152661503857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152661520201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930446 + ... + 1082151.

It is an arithmetic number, because the mean of its divisors is an integer number (38165902173).

Almost surely, 2^152661520241 is an apocalyptic number.

It is an amenable number.

152661520241 is a deficient number, since it is larger than the sum of its proper divisors (2088451).

152661520241 is an equidigital number, since it uses as much as digits as its factorization.

152661520241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088450.

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 152661520241 its reverse (142025166251), we get a palindrome (294686686492).

The spelling of 152661520241 in words is "one hundred fifty-two billion, six hundred sixty-one million, five hundred twenty thousand, two hundred forty-one".