75261481 has 4 divisors (see below), whose sum is σ = 77011792. Its totient is φ = 73511172.

The previous prime is 75261479. The next prime is 75261493. The reversal of 75261481 is 18416257.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75261481 - 2¹ = 75261479 is a prime.

It is a super-2 number, since 2×75261481² = 11328581044626722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75261581) 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 3 ways as a sum of consecutive naturals, for example, 875091 + ... + 875176.

It is an arithmetic number, because the mean of its divisors is an integer number (19252948).

Almost surely, 2^75261481 is an apocalyptic number.

It is an amenable number.

75261481 is a deficient number, since it is larger than the sum of its proper divisors (1750311).

75261481 is a wasteful number, since it uses less digits than its factorization.

75261481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750310.

The product of its digits is 13440, while the sum is 34.

The square root of 75261481 is about 8675.3375150480. The cubic root of 75261481 is about 422.2058566782.

The spelling of 75261481 in words is "seventy-five million, two hundred sixty-one thousand, four hundred eighty-one".