132431402 has 8 divisors (see below), whose sum is σ = 200614212. Its totient is φ = 65560000.

The previous prime is 132431381. The next prime is 132431423. The reversal of 132431402 is 204134231.

It is an interprime number because it is at equal distance from previous prime (132431381) and next prime (132431423).

It can be written as a sum of positive squares in 2 ways, for example, as 131997121 + 434281 = 11489^2 + 659^2 .

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, 327599 + ... + 328002.

Almost surely, 2^132431402 is an apocalyptic number.

132431402 is a deficient number, since it is larger than the sum of its proper divisors (68182810).

132431402 is a wasteful number, since it uses less digits than its factorization.

132431402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655704.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 132431402 is about 11507.8843407466. The cubic root of 132431402 is about 509.7184169039.

Adding to 132431402 its reverse (204134231), we get a palindrome (336565633).

The spelling of 132431402 in words is "one hundred thirty-two million, four hundred thirty-one thousand, four hundred two".