75148545 has 16 divisors (see below), whose sum is σ = 121430592. Its totient is φ = 39681600.

The previous prime is 75148537. The next prime is 75148573. The reversal of 75148545 is 54584157.

It is not a de Polignac number, because 75148545 - 2³ = 75148537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23287 + ... + 26316.

It is an arithmetic number, because the mean of its divisors is an integer number (7589412).

Almost surely, 2^75148545 is an apocalyptic number.

It is an amenable number.

75148545 is a deficient number, since it is larger than the sum of its proper divisors (46282047).

75148545 is a wasteful number, since it uses less digits than its factorization.

75148545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49712.

The product of its digits is 112000, while the sum is 39.

The square root of 75148545 is about 8668.8260450882. The cubic root of 75148545 is about 421.9945661647.

The spelling of 75148545 in words is "seventy-five million, one hundred forty-eight thousand, five hundred forty-five".