102131537487 has 16 divisors (see below), whose sum is σ = 155663592960. Its totient is φ = 58347909792.

The previous prime is 102131537477. The next prime is 102131537491. The reversal of 102131537487 is 784735131201.

It is not a de Polignac number, because 102131537487 - 2⁶ = 102131537423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102131537447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443208 + ... + 633005.

It is an arithmetic number, because the mean of its divisors is an integer number (9728974560).

Almost surely, 2^102131537487 is an apocalyptic number.

102131537487 is a deficient number, since it is larger than the sum of its proper divisors (53532055473).

102131537487 is a wasteful number, since it uses less digits than its factorization.

102131537487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080742.

The product of its (nonzero) digits is 141120, while the sum is 42.

Adding to 102131537487 its reverse (784735131201), we get a palindrome (886866668688).

The spelling of 102131537487 in words is "one hundred two billion, one hundred thirty-one million, five hundred thirty-seven thousand, four hundred eighty-seven".