1220254 has 16 divisors (see below), whose sum is σ = 2141568. Its totient is φ = 510552.

The previous prime is 1220251. The next prime is 1220257. The reversal of 1220254 is 4520221.

1220254 = 147² + 148² + ... + 189².

It is an interprime number because it is at equal distance from previous prime (1220251) and next prime (1220257).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220251) 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, 412 + ... + 1615.

It is an arithmetic number, because the mean of its divisors is an integer number (133848).

2^1220254 is an apocalyptic number.

1220254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1220254 is a deficient number, since it is larger than the sum of its proper divisors (921314).

1220254 is a wasteful number, since it uses less digits than its factorization.

1220254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1220254 is about 1104.6510761322. The cubic root of 1220254 is about 106.8603879799.

Adding to 1220254 its reverse (4520221), we get a palindrome (5740475).

The spelling of 1220254 in words is "one million, two hundred twenty thousand, two hundred fifty-four".