131523562545 has 16 divisors (see below), whose sum is σ = 210599980800. Its totient is φ = 70091806464.

The previous prime is 131523562531. The next prime is 131523562559. The reversal of 131523562545 is 545265325131.

It is an interprime number because it is at equal distance from previous prime (131523562531) and next prime (131523562559).

It is not a de Polignac number, because 131523562545 - 2¹³ = 131523554353 is a prime.

It is a super-3 number, since 3×131523562545³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131523562497 and 131523562506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3360745 + ... + 3399654.

It is an arithmetic number, because the mean of its divisors is an integer number (13162498800).

Almost surely, 2^131523562545 is an apocalyptic number.

131523562545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131523562545 is a deficient number, since it is larger than the sum of its proper divisors (79076418255).

131523562545 is a wasteful number, since it uses less digits than its factorization.

131523562545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6761704.

The product of its digits is 540000, while the sum is 42.

Adding to 131523562545 its reverse (545265325131), we get a palindrome (676788887676).

The spelling of 131523562545 in words is "one hundred thirty-one billion, five hundred twenty-three million, five hundred sixty-two thousand, five hundred forty-five".