1300143402 has 36 divisors (see below), whose sum is σ = 2944801314. Its totient is φ = 414535440.

The previous prime is 1300143401. The next prime is 1300143421. The reversal of 1300143402 is 2043410031.

It can be written as a sum of positive squares in only one way, i.e., 1282427721 + 17715681 = 35811^2 + 4209^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1300143401) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 58749 + ... + 77792.

Almost surely, 2^1300143402 is an apocalyptic number.

1300143402 is an abundant number, since it is smaller than the sum of its proper divisors (1644657912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1300143402 is a wasteful number, since it uses less digits than its factorization.

1300143402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136595 (or 136569 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1300143402 is about 36057.5013277404. The cubic root of 1300143402 is about 1091.4330118221.

Adding to 1300143402 its reverse (2043410031), we get a palindrome (3343553433).

The spelling of 1300143402 in words is "one billion, three hundred million, one hundred forty-three thousand, four hundred two".