30142659 has 4 divisors (see below), whose sum is σ = 40190216. Its totient is φ = 20095104.

The previous prime is 30142657. The next prime is 30142661. The reversal of 30142659 is 95624103.

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

It is an interprime number because it is at equal distance from previous prime (30142657) and next prime (30142661).

It is not a de Polignac number, because 30142659 - 2¹ = 30142657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30142657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5023774 + ... + 5023779.

It is an arithmetic number, because the mean of its divisors is an integer number (10047554).

Almost surely, 2^30142659 is an apocalyptic number.

30142659 is a deficient number, since it is larger than the sum of its proper divisors (10047557).

30142659 is a wasteful number, since it uses less digits than its factorization.

30142659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10047556.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 30142659 is about 5490.2330551626. The cubic root of 30142659 is about 311.2149993707.

The spelling of 30142659 in words is "thirty million, one hundred forty-two thousand, six hundred fifty-nine".