1213454 has 16 divisors (see below), whose sum is σ = 2090880. Its totient is φ = 522360.

The previous prime is 1213451. The next prime is 1213469. The reversal of 1213454 is 4543121.

It is a super-2 number, since 2×1213454² = 2944941220232, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1034 + ... + 1869.

It is an arithmetic number, because the mean of its divisors is an integer number (130680).

2^1213454 is an apocalyptic number.

1213454 is a deficient number, since it is larger than the sum of its proper divisors (877426).

1213454 is a wasteful number, since it uses less digits than its factorization.

1213454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935.

The product of its digits is 480, while the sum is 20.

The square root of 1213454 is about 1101.5688811872. The cubic root of 1213454 is about 106.6615210191.

Adding to 1213454 its reverse (4543121), we get a palindrome (5756575).

The spelling of 1213454 in words is "one million, two hundred thirteen thousand, four hundred fifty-four".