131535106 has 4 divisors (see below), whose sum is σ = 197302662. Its totient is φ = 65767552.

The previous prime is 131535101. The next prime is 131535113. The reversal of 131535106 is 601535131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68475625 + 63059481 = 8275^2 + 7941^2 .

It is a super-2 number, since 2×131535106² = 34602968220862472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131535101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32883775 + ... + 32883778.

Almost surely, 2^131535106 is an apocalyptic number.

131535106 is a deficient number, since it is larger than the sum of its proper divisors (65767556).

131535106 is an equidigital number, since it uses as much as digits as its factorization.

131535106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65767555.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 131535106 is about 11468.8755333729. The cubic root of 131535106 is about 508.5658877770.

Adding to 131535106 its sum of digits (25), we get a palindrome (131535131).

The spelling of 131535106 in words is "one hundred thirty-one million, five hundred thirty-five thousand, one hundred six".