131521150705 has 8 divisors (see below), whose sum is σ = 180371863872. Its totient is φ = 90185931888.

The previous prime is 131521150703. The next prime is 131521150799. The reversal of 131521150705 is 507051125131.

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 131521150705 - 2¹ = 131521150703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131521150703) 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, 1878873547 + ... + 1878873616.

It is an arithmetic number, because the mean of its divisors is an integer number (22546482984).

Almost surely, 2^131521150705 is an apocalyptic number.

It is an amenable number.

131521150705 is a deficient number, since it is larger than the sum of its proper divisors (48850713167).

131521150705 is an equidigital number, since it uses as much as digits as its factorization.

131521150705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757747175.

The product of its (nonzero) digits is 5250, while the sum is 31.

Adding to 131521150705 its reverse (507051125131), we get a palindrome (638572275836).

The spelling of 131521150705 in words is "one hundred thirty-one billion, five hundred twenty-one million, one hundred fifty thousand, seven hundred five".