1012651 has 4 divisors (see below), whose sum is σ = 1047600. Its totient is φ = 977704.

The previous prime is 1012637. The next prime is 1012657. The reversal of 1012651 is 1562101.

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 1012651 - 2⁵ = 1012619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012657) 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, 17431 + ... + 17488.

It is an arithmetic number, because the mean of its divisors is an integer number (261900).

2^1012651 is an apocalyptic number.

1012651 is a deficient number, since it is larger than the sum of its proper divisors (34949).

1012651 is an equidigital number, since it uses as much as digits as its factorization.

1012651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34948.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1012651 is about 1006.3056195809. The cubic root of 1012651 is about 100.4199340852.

Adding to 1012651 its reverse (1562101), we get a palindrome (2574752).

The spelling of 1012651 in words is "one million, twelve thousand, six hundred fifty-one".