1242654 has 16 divisors (see below), whose sum is σ = 2840448. Its totient is φ = 355032.

The previous prime is 1242643. The next prime is 1242739. The reversal of 1242654 is 4562421.

1242654 = 168² + 169² + ... + 203².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14752 + ... + 14835.

It is an arithmetic number, because the mean of its divisors is an integer number (177528).

2^1242654 is an apocalyptic number.

1242654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1242654 is an abundant number, since it is smaller than the sum of its proper divisors (1597794).

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

1242654 is a wasteful number, since it uses less digits than its factorization.

1242654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29599.

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

The square root of 1242654 is about 1114.7439167809. The cubic root of 1242654 is about 107.5103000767.

The spelling of 1242654 in words is "one million, two hundred forty-two thousand, six hundred fifty-four".