75040961 has 4 divisors (see below), whose sum is σ = 75096000. Its totient is φ = 74985924.

The previous prime is 75040943. The next prime is 75040963. The reversal of 75040961 is 16904057.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16904057 = 23 ⋅734959.

It is a cyclic number.

It is not a de Polignac number, because 75040961 - 2⁶ = 75040897 is a prime.

It is a super-2 number, since 2×75040961² = 11262291655607042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75040963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25421 + ... + 28218.

It is an arithmetic number, because the mean of its divisors is an integer number (18774000).

Almost surely, 2^75040961 is an apocalyptic number.

It is an amenable number.

75040961 is a deficient number, since it is larger than the sum of its proper divisors (55039).

75040961 is a wasteful number, since it uses less digits than its factorization.

75040961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55038.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 75040961 is about 8662.6185994767. The cubic root of 75040961 is about 421.7930916685.

The spelling of 75040961 in words is "seventy-five million, forty thousand, nine hundred sixty-one".