1012263145 has 8 divisors (see below), whose sum is σ = 1244343240. Its totient is φ = 790058880.

The previous prime is 1012263101. The next prime is 1012263149. The reversal of 1012263145 is 5413622101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 84695209 + 927567936 = 9203^2 + 30456^2 .

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

It is not a de Polignac number, because 1012263145 - 2¹¹ = 1012261097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012263149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2468730 + ... + 2469139.

It is an arithmetic number, because the mean of its divisors is an integer number (155542905).

Almost surely, 2^1012263145 is an apocalyptic number.

It is an amenable number.

1012263145 is a deficient number, since it is larger than the sum of its proper divisors (232080095).

1012263145 is an equidigital number, since it uses as much as digits as its factorization.

1012263145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4937915.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1012263145 is about 31816.0831184481. The cubic root of 1012263145 is about 1004.0711185026.

Adding to 1012263145 its reverse (5413622101), we get a palindrome (6425885246).

The spelling of 1012263145 in words is "one billion, twelve million, two hundred sixty-three thousand, one hundred forty-five".