1012065451 has 4 divisors (see below), whose sum is σ = 1012482504. Its totient is φ = 1011648400.

The previous prime is 1012065433. The next prime is 1012065487. The reversal of 1012065451 is 1545602101.

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 1012065451 - 2⁷ = 1012065323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012065421) 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, 204865 + ... + 209746.

It is an arithmetic number, because the mean of its divisors is an integer number (253120626).

Almost surely, 2^1012065451 is an apocalyptic number.

1012065451 is a deficient number, since it is larger than the sum of its proper divisors (417053).

1012065451 is an equidigital number, since it uses as much as digits as its factorization.

1012065451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417052.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1012065451 is about 31812.9761418199. The cubic root of 1012065451 is about 1004.0057495451.

Adding to 1012065451 its reverse (1545602101), we get a palindrome (2557667552).

The spelling of 1012065451 in words is "one billion, twelve million, sixty-five thousand, four hundred fifty-one".