1029214138 has 4 divisors (see below), whose sum is σ = 1543821210. Its totient is φ = 514607068.

The previous prime is 1029214129. The next prime is 1029214157. The reversal of 1029214138 is 8314129201.

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

It can be written as a sum of positive squares in only one way, i.e., 735331689 + 293882449 = 27117^2 + 17143^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257303533 + ... + 257303536.

Almost surely, 2^1029214138 is an apocalyptic number.

1029214138 is a deficient number, since it is larger than the sum of its proper divisors (514607072).

1029214138 is an equidigital number, since it uses as much as digits as its factorization.

1029214138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514607071.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1029214138 is about 32081.3674583862. The cubic root of 1029214138 is about 1009.6447262033.

The spelling of 1029214138 in words is "one billion, twenty-nine million, two hundred fourteen thousand, one hundred thirty-eight".