75454949 has 8 divisors (see below), whose sum is σ = 76054272. Its totient is φ = 74858400.

The previous prime is 75454937. The next prime is 75454957. The reversal of 75454949 is 94945457.

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

It is a cyclic number.

It is not a de Polignac number, because 75454949 - 2⁴ = 75454933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75454649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125249 + ... + 125849.

It is an arithmetic number, because the mean of its divisors is an integer number (9506784).

Almost surely, 2^75454949 is an apocalyptic number.

It is an amenable number.

75454949 is a deficient number, since it is larger than the sum of its proper divisors (599323).

75454949 is a wasteful number, since it uses less digits than its factorization.

75454949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387.

The product of its digits is 907200, while the sum is 47.

The square root of 75454949 is about 8686.4808179147. The cubic root of 75454949 is about 422.5673228154.

The spelling of 75454949 in words is "seventy-five million, four hundred fifty-four thousand, nine hundred forty-nine".