75400545 has 24 divisors (see below), whose sum is σ = 132608448. Its totient is φ = 36556960.

The previous prime is 75400541. The next prime is 75400571. The reversal of 75400545 is 54500457.

It is not a de Polignac number, because 75400545 - 2² = 75400541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75400541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18957 + ... + 22586.

It is an arithmetic number, because the mean of its divisors is an integer number (5525352).

Almost surely, 2^75400545 is an apocalyptic number.

It is an amenable number.

75400545 is a deficient number, since it is larger than the sum of its proper divisors (57207903).

75400545 is a wasteful number, since it uses less digits than its factorization.

75400545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41573 (or 41562 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 75400545 is about 8683.3487203958. The cubic root of 75400545 is about 422.4657395512.

The spelling of 75400545 in words is "seventy-five million, four hundred thousand, five hundred forty-five".