1431402002 has 4 divisors (see below), whose sum is σ = 2147103006. Its totient is φ = 715701000.

The previous prime is 1431402001. The next prime is 1431402013. The reversal of 1431402002 is 2002041341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2002041341 = 659 ⋅3037999.

It can be written as a sum of positive squares in only one way, i.e., 1407675361 + 23726641 = 37519^2 + 4871^2 .

It is not an unprimeable number, because it can be changed into a prime (1431402001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357850499 + ... + 357850502.

Almost surely, 2^1431402002 is an apocalyptic number.

1431402002 is a deficient number, since it is larger than the sum of its proper divisors (715701004).

1431402002 is an equidigital number, since it uses as much as digits as its factorization.

1431402002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715701003.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1431402002 is about 37833.8737376970. The cubic root of 1431402002 is about 1126.9912394044.

Adding to 1431402002 its reverse (2002041341), we get a palindrome (3433443343).

The spelling of 1431402002 in words is "one billion, four hundred thirty-one million, four hundred two thousand, two".