75145461 has 8 divisors (see below), whose sum is σ = 101401440. Its totient is φ = 49493232.

The previous prime is 75145451. The next prime is 75145463. The reversal of 75145461 is 16454157.

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

It is not a de Polignac number, because 75145461 - 2¹¹ = 75143413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75145463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150646 + ... + 151143.

It is an arithmetic number, because the mean of its divisors is an integer number (12675180).

Almost surely, 2^75145461 is an apocalyptic number.

It is an amenable number.

75145461 is a deficient number, since it is larger than the sum of its proper divisors (26255979).

75145461 is a wasteful number, since it uses less digits than its factorization.

75145461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301875.

The product of its digits is 16800, while the sum is 33.

The square root of 75145461 is about 8668.6481645064. The cubic root of 75145461 is about 421.9887933803.

The spelling of 75145461 in words is "seventy-five million, one hundred forty-five thousand, four hundred sixty-one".