1021244134 has 4 divisors (see below), whose sum is σ = 1531866204. Its totient is φ = 510622066.

The previous prime is 1021244131. The next prime is 1021244177. The reversal of 1021244134 is 4314421201.

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: 4314421201 = 947 ⋅4555883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021244131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255311032 + ... + 255311035.

It is an arithmetic number, because the mean of its divisors is an integer number (382966551).

Almost surely, 2^1021244134 is an apocalyptic number.

1021244134 is a deficient number, since it is larger than the sum of its proper divisors (510622070).

1021244134 is an equidigital number, since it uses as much as digits as its factorization.

1021244134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510622069.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1021244134 is about 31956.9105828458. The cubic root of 1021244134 is about 1007.0318156690.

Adding to 1021244134 its reverse (4314421201), we get a palindrome (5335665335).

The spelling of 1021244134 in words is "one billion, twenty-one million, two hundred forty-four thousand, one hundred thirty-four".