1021243274 has 8 divisors (see below), whose sum is σ = 1612489440. Its totient is φ = 483746796.

The previous prime is 1021243271. The next prime is 1021243277. The reversal of 1021243274 is 4723421201.

It is an interprime number because it is at equal distance from previous prime (1021243271) and next prime (1021243277).

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

It is not an unprimeable number, because it can be changed into a prime (1021243271) 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, 13437374 + ... + 13437449.

It is an arithmetic number, because the mean of its divisors is an integer number (201561180).

Almost surely, 2^1021243274 is an apocalyptic number.

1021243274 is a deficient number, since it is larger than the sum of its proper divisors (591246166).

1021243274 is a wasteful number, since it uses less digits than its factorization.

1021243274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26874844.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 1021243274 is about 31956.8971272244. The cubic root of 1021243274 is about 1007.0315329917.

Adding to 1021243274 its reverse (4723421201), we get a palindrome (5744664475).

The spelling of 1021243274 in words is "one billion, twenty-one million, two hundred forty-three thousand, two hundred seventy-four".