1264542 has 16 divisors (see below), whose sum is σ = 2540160. Its totient is φ = 419672.

The previous prime is 1264541. The next prime is 1264559. The reversal of 1264542 is 2454621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2263 + ... + 2765.

It is an arithmetic number, because the mean of its divisors is an integer number (158760).

2^1264542 is an apocalyptic number.

1264542 is an abundant number, since it is smaller than the sum of its proper divisors (1275618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1264542 is a wasteful number, since it uses less digits than its factorization.

1264542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927.

The product of its digits is 1920, while the sum is 24.

The square root of 1264542 is about 1124.5185636529. The cubic root of 1264542 is about 108.1378555109.

The spelling of 1264542 in words is "one million, two hundred sixty-four thousand, five hundred forty-two".