307142530 has 16 divisors (see below), whose sum is σ = 556251264. Its totient is φ = 122102640.

The previous prime is 307142527. The next prime is 307142531. The reversal of 307142530 is 35241703.

It is a junction number, because it is equal to n+sod(n) for n = 307142495 and 307142504.

It is not an unprimeable number, because it can be changed into a prime (307142531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92586 + ... + 95845.

It is an arithmetic number, because the mean of its divisors is an integer number (34765704).

Almost surely, 2^307142530 is an apocalyptic number.

307142530 is a deficient number, since it is larger than the sum of its proper divisors (249108734).

307142530 is a wasteful number, since it uses less digits than its factorization.

307142530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188601.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 307142530 is about 17525.4823043476. The cubic root of 307142530 is about 674.7040531631.

The spelling of 307142530 in words is "three hundred seven million, one hundred forty-two thousand, five hundred thirty".