126653449 has 8 divisors (see below), whose sum is σ = 143575040. Its totient is φ = 110757456.

The previous prime is 126653431. The next prime is 126653477. The reversal of 126653449 is 944356621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126653449 is a prime.

It is a super-2 number, since 2×126653449² = 32082192287191202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126653489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256137 + ... + 256630.

It is an arithmetic number, because the mean of its divisors is an integer number (17946880).

Almost surely, 2^126653449 is an apocalyptic number.

126653449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

126653449 is a deficient number, since it is larger than the sum of its proper divisors (16921591).

126653449 is a wasteful number, since it uses less digits than its factorization.

126653449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512799.

The product of its digits is 155520, while the sum is 40.

The square root of 126653449 is about 11254.0414518519. The cubic root of 126653449 is about 502.1949489650.

The spelling of 126653449 in words is "one hundred twenty-six million, six hundred fifty-three thousand, four hundred forty-nine".