30166142 has 4 divisors (see below), whose sum is σ = 45249216. Its totient is φ = 15083070.

The previous prime is 30166139. The next prime is 30166153. The reversal of 30166142 is 24166103.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24166103 = 13 ⋅1858931.

It is a super-2 number, since 2×30166142² = 1819992246328328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7541534 + ... + 7541537.

It is an arithmetic number, because the mean of its divisors is an integer number (11312304).

Almost surely, 2^30166142 is an apocalyptic number.

30166142 is a deficient number, since it is larger than the sum of its proper divisors (15083074).

30166142 is a wasteful number, since it uses less digits than its factorization.

30166142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15083073.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 30166142 is about 5492.3712547496. The cubic root of 30166142 is about 311.2957969847.

The spelling of 30166142 in words is "thirty million, one hundred sixty-six thousand, one hundred forty-two".