131345401 has 8 divisors (see below), whose sum is σ = 146335104. Its totient is φ = 116863920.

The previous prime is 131345381. The next prime is 131345407. The reversal of 131345401 is 104543131.

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 131345401 - 2⁵ = 131345369 is a prime.

It is a super-2 number, since 2×131345401² = 34503228727701602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131345407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126510 + ... + 127543.

It is an arithmetic number, because the mean of its divisors is an integer number (18291888).

Almost surely, 2^131345401 is an apocalyptic number.

131345401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131345401 is a deficient number, since it is larger than the sum of its proper divisors (14989703).

131345401 is a wasteful number, since it uses less digits than its factorization.

131345401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254111.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 131345401 is about 11460.6021220528. The cubic root of 131345401 is about 508.3212790357.

Adding to 131345401 its reverse (104543131), we get a palindrome (235888532).

The spelling of 131345401 in words is "one hundred thirty-one million, three hundred forty-five thousand, four hundred one".