1026749121 has 8 divisors (see below), whose sum is σ = 1371097920. Its totient is φ = 683449872.

The previous prime is 1026749111. The next prime is 1026749137. The reversal of 1026749121 is 1219476201.

It is a happy number.

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

It is not a de Polignac number, because 1026749121 - 2²² = 1022554817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1026749111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260101 + ... + 264018.

It is an arithmetic number, because the mean of its divisors is an integer number (171387240).

Almost surely, 2^1026749121 is an apocalyptic number.

It is an amenable number.

1026749121 is a deficient number, since it is larger than the sum of its proper divisors (344348799).

1026749121 is an equidigital number, since it uses as much as digits as its factorization.

1026749121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524775.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 1026749121 is about 32042.9262240514. The cubic root of 1026749121 is about 1008.8380327288.

The spelling of 1026749121 in words is "one billion, twenty-six million, seven hundred forty-nine thousand, one hundred twenty-one".