131421002 has 8 divisors (see below), whose sum is σ = 197224356. Its totient is φ = 65679552.

The previous prime is 131420983. The next prime is 131421013. The reversal of 131421002 is 200124131.

It can be written as a sum of positive squares in 2 ways, for example, as 122124601 + 9296401 = 11051^2 + 3049^2 .

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, 9743 + ... + 18914.

Almost surely, 2^131421002 is an apocalyptic number.

131421002 is a deficient number, since it is larger than the sum of its proper divisors (65803354).

131421002 is a wasteful number, since it uses less digits than its factorization.

131421002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30952.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 131421002 is about 11463.8999472256. The cubic root of 131421002 is about 508.4187884165.

Adding to 131421002 its reverse (200124131), we get a palindrome (331545133).

The spelling of 131421002 in words is "one hundred thirty-one million, four hundred twenty-one thousand, two".