10645651 has 4 divisors (see below), whose sum is σ = 10716304. Its totient is φ = 10575000.

The previous prime is 10645637. The next prime is 10645673. The reversal of 10645651 is 15654601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15654601 = 227 ⋅68963.

It is a cyclic number.

It is not a de Polignac number, because 10645651 - 2¹⁷ = 10514579 is a prime.

It is a super-2 number, since 2×10645651² = 226659770427602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10646651) 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, 35100 + ... + 35401.

It is an arithmetic number, because the mean of its divisors is an integer number (2679076).

Almost surely, 2^10645651 is an apocalyptic number.

10645651 is a deficient number, since it is larger than the sum of its proper divisors (70653).

10645651 is an equidigital number, since it uses as much as digits as its factorization.

10645651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70652.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 10645651 is about 3262.7673836791. The cubic root of 10645651 is about 219.9838211243.

The spelling of 10645651 in words is "ten million, six hundred forty-five thousand, six hundred fifty-one".