921142030 has 8 divisors (see below), whose sum is σ = 1658055672. Its totient is φ = 368456808.

The previous prime is 921142009. The next prime is 921142031. The reversal of 921142030 is 30241129.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 921141992 and 921142010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (921142031) 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, 46057092 + ... + 46057111.

It is an arithmetic number, because the mean of its divisors is an integer number (207256959).

Almost surely, 2^921142030 is an apocalyptic number.

921142030 is a deficient number, since it is larger than the sum of its proper divisors (736913642).

921142030 is a wasteful number, since it uses less digits than its factorization.

921142030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92114210.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 921142030 is about 30350.3217445878. The cubic root of 921142030 is about 972.9910966315.

Adding to 921142030 its reverse (30241129), we get a palindrome (951383159).

The spelling of 921142030 in words is "nine hundred twenty-one million, one hundred forty-two thousand, thirty".