142215030 has 48 divisors (see below), whose sum is σ = 391513824. Its totient is φ = 35692800.

The previous prime is 142215001. The next prime is 142215037. The reversal of 142215030 is 30512241.

142215030 is a `hidden beast` number, since 142 + 21 + 503 + 0 = 666.

142215030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142215030² = 40450229515801800, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 142214994 and 142215012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142215037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44946 + ... + 48005.

It is an arithmetic number, because the mean of its divisors is an integer number (8156538).

Almost surely, 2^142215030 is an apocalyptic number.

142215030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142215030 is an abundant number, since it is smaller than the sum of its proper divisors (249298794).

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

142215030 is a wasteful number, since it uses less digits than its factorization.

142215030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92981 (or 92978 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 142215030 is about 11925.3943331028. The cubic root of 142215030 is about 521.9735530706.

Adding to 142215030 its reverse (30512241), we get a palindrome (172727271).

The spelling of 142215030 in words is "one hundred forty-two million, two hundred fifteen thousand, thirty".