131021354 has 8 divisors (see below), whose sum is σ = 196879140. Its totient is φ = 65394976.

The previous prime is 131021347. The next prime is 131021389. The reversal of 131021354 is 453120131.

It can be written as a sum of positive squares in 2 ways, for example, as 129390625 + 1630729 = 11375^2 + 1277^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56429 + ... + 58704.

Almost surely, 2^131021354 is an apocalyptic number.

131021354 is a deficient number, since it is larger than the sum of its proper divisors (65857786).

131021354 is a wasteful number, since it uses less digits than its factorization.

131021354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115704.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 131021354 is about 11446.4559580684. The cubic root of 131021354 is about 507.9029021647.

Adding to 131021354 its reverse (453120131), we get a palindrome (584141485).

The spelling of 131021354 in words is "one hundred thirty-one million, twenty-one thousand, three hundred fifty-four".