1264654 has 4 divisors (see below), whose sum is σ = 1896984. Its totient is φ = 632326.

The previous prime is 1264651. The next prime is 1264657. The reversal of 1264654 is 4564621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4564621 = 139 ⋅32839.

It is an interprime number because it is at equal distance from previous prime (1264651) and next prime (1264657).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316162 + ... + 316165.

It is an arithmetic number, because the mean of its divisors is an integer number (474246).

2^1264654 is an apocalyptic number.

1264654 is a deficient number, since it is larger than the sum of its proper divisors (632330).

1264654 is an equidigital number, since it uses as much as digits as its factorization.

1264654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632329.

The product of its digits is 5760, while the sum is 28.

The square root of 1264654 is about 1124.5683616393. The cubic root of 1264654 is about 108.1410479928.

The spelling of 1264654 in words is "one million, two hundred sixty-four thousand, six hundred fifty-four".