1307402146 has 4 divisors (see below), whose sum is σ = 1961103222. Its totient is φ = 653701072.

The previous prime is 1307402113. The next prime is 1307402171. The reversal of 1307402146 is 6412047031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 662496121 + 644906025 = 25739^2 + 25395^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326850535 + ... + 326850538.

Almost surely, 2^1307402146 is an apocalyptic number.

1307402146 is a deficient number, since it is larger than the sum of its proper divisors (653701076).

1307402146 is an equidigital number, since it uses as much as digits as its factorization.

1307402146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653701075.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1307402146 is about 36158.0163449269. The cubic root of 1307402146 is about 1093.4604124506.

Adding to 1307402146 its reverse (6412047031), we get a palindrome (7719449177).

The spelling of 1307402146 in words is "one billion, three hundred seven million, four hundred two thousand, one hundred forty-six".