1019069242 has 4 divisors (see below), whose sum is σ = 1528603866. Its totient is φ = 509534620.

The previous prime is 1019069203. The next prime is 1019069243. The reversal of 1019069242 is 2429609101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2429609101 = 137 ⋅17734373.

It can be written as a sum of positive squares in only one way, i.e., 757955961 + 261113281 = 27531^2 + 16159^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1019069198 and 1019069207.

It is not an unprimeable number, because it can be changed into a prime (1019069243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254767309 + ... + 254767312.

Almost surely, 2^1019069242 is an apocalyptic number.

1019069242 is a deficient number, since it is larger than the sum of its proper divisors (509534624).

1019069242 is an equidigital number, since it uses as much as digits as its factorization.

1019069242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509534623.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 1019069242 is about 31922.8639379364. The cubic root of 1019069242 is about 1006.3164326753.

The spelling of 1019069242 in words is "one billion, nineteen million, sixty-nine thousand, two hundred forty-two".