1026165242 has 4 divisors (see below), whose sum is σ = 1539247866. Its totient is φ = 513082620.

The previous prime is 1026165221. The next prime is 1026165251. The reversal of 1026165242 is 2425616201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2425616201 = 59 ⋅41112139.

It can be written as a sum of positive squares in only one way, i.e., 806503201 + 219662041 = 28399^2 + 14821^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256541309 + ... + 256541312.

Almost surely, 2^1026165242 is an apocalyptic number.

1026165242 is a deficient number, since it is larger than the sum of its proper divisors (513082624).

1026165242 is an equidigital number, since it uses as much as digits as its factorization.

1026165242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513082623.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1026165242 is about 32033.8140407913. The cubic root of 1026165242 is about 1008.6467652871.

The spelling of 1026165242 in words is "one billion, twenty-six million, one hundred sixty-five thousand, two hundred forty-two".