1025423291 has 8 divisors (see below), whose sum is σ = 1056535584. Its totient is φ = 994489920.

The previous prime is 1025423281. The next prime is 1025423317. The reversal of 1025423291 is 1923245201.

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

It is a cyclic number.

It is not a de Polignac number, because 1025423291 - 2⁶ = 1025423227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025423261) 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, 33050 + ... + 56063.

It is an arithmetic number, because the mean of its divisors is an integer number (132066948).

Almost surely, 2^1025423291 is an apocalyptic number.

1025423291 is a deficient number, since it is larger than the sum of its proper divisors (31112293).

1025423291 is an equidigital number, since it uses as much as digits as its factorization.

1025423291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89461.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1025423291 is about 32022.2311995901. The cubic root of 1025423291 is about 1008.4036118188.

Adding to 1025423291 its reverse (1923245201), we get a palindrome (2948668492).

The spelling of 1025423291 in words is "one billion, twenty-five million, four hundred twenty-three thousand, two hundred ninety-one".