1012265651 has 4 divisors (see below), whose sum is σ = 1013990712. Its totient is φ = 1010540592.

The previous prime is 1012265633. The next prime is 1012265701. The reversal of 1012265651 is 1565622101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1012265651 - 2¹⁴ = 1012249267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012265251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861650 + ... + 862823.

It is an arithmetic number, because the mean of its divisors is an integer number (253497678).

Almost surely, 2^1012265651 is an apocalyptic number.

1012265651 is a deficient number, since it is larger than the sum of its proper divisors (1725061).

1012265651 is an equidigital number, since it uses as much as digits as its factorization.

1012265651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725060.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 1012265651 is about 31816.1225010214. The cubic root of 1012265651 is about 1004.0719470750.

Adding to 1012265651 its reverse (1565622101), we get a palindrome (2577887752).

The spelling of 1012265651 in words is "one billion, twelve million, two hundred sixty-five thousand, six hundred fifty-one".