1245554 has 4 divisors (see below), whose sum is σ = 1868334. Its totient is φ = 622776.

The previous prime is 1245551. The next prime is 1245557. The reversal of 1245554 is 4555421.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1245551) and next prime (1245557).

It can be written as a sum of positive squares in only one way, i.e., 648025 + 597529 = 805^2 + 773^2 .

It is not an unprimeable number, because it can be changed into a prime (1245551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311387 + ... + 311390.

2^1245554 is an apocalyptic number.

1245554 is a deficient number, since it is larger than the sum of its proper divisors (622780).

1245554 is an equidigital number, since it uses as much as digits as its factorization.

1245554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622779.

The product of its digits is 4000, while the sum is 26.

The square root of 1245554 is about 1116.0439059464. The cubic root of 1245554 is about 107.5938678945.

The spelling of 1245554 in words is "one million, two hundred forty-five thousand, five hundred fifty-four".