131501351 has 4 divisors (see below), whose sum is σ = 131654592. Its totient is φ = 131348112.

The previous prime is 131501339. The next prime is 131501407. The reversal of 131501351 is 153105131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153105131 = 241 ⋅635291.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131501351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131501651) 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, 75326 + ... + 77051.

It is an arithmetic number, because the mean of its divisors is an integer number (32913648).

Almost surely, 2^131501351 is an apocalyptic number.

131501351 is a deficient number, since it is larger than the sum of its proper divisors (153241).

131501351 is an equidigital number, since it uses as much as digits as its factorization.

131501351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153240.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 131501351 is about 11467.4038474277. The cubic root of 131501351 is about 508.5223807348.

Adding to 131501351 its reverse (153105131), we get a palindrome (284606482).

The spelling of 131501351 in words is "one hundred thirty-one million, five hundred one thousand, three hundred fifty-one".