75077201 has 4 divisors (see below), whose sum is σ = 77666100. Its totient is φ = 72488304.

The previous prime is 75077179. The next prime is 75077207. The reversal of 75077201 is 10277057.

75077201 = T₁₂₇₀ + T₁₂₇₁ + ... + T₁₃₅₆.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22137025 + 52940176 = 4705^2 + 7276^2 .

It is a cyclic number.

It is not a de Polignac number, because 75077201 - 2⁶ = 75077137 is a prime.

It is a super-2 number, since 2×75077201² = 11273172219988802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 2588869 = 75077201 / (7 + 5 + 0 + 7 + 7 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75077207) 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, 1294406 + ... + 1294463.

It is an arithmetic number, because the mean of its divisors is an integer number (19416525).

Almost surely, 2^75077201 is an apocalyptic number.

It is an amenable number.

75077201 is a deficient number, since it is larger than the sum of its proper divisors (2588899).

75077201 is a wasteful number, since it uses less digits than its factorization.

75077201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588898.

The product of its (nonzero) digits is 3430, while the sum is 29.

The square root of 75077201 is about 8664.7100932461. The cubic root of 75077201 is about 421.8609804651.

The spelling of 75077201 in words is "seventy-five million, seventy-seven thousand, two hundred one".