75432101 has 4 divisors (see below), whose sum is σ = 75518604. Its totient is φ = 75345600.

The previous prime is 75432073. The next prime is 75432107. The reversal of 75432101 is 10123457.

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 43903876 + 31528225 = 6626^2 + 5615^2 .

It is a cyclic number.

It is not a de Polignac number, because 75432101 - 2¹⁰ = 75431077 is a prime.

It is a super-2 number, since 2×75432101² = 11380003722548402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75432107) 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, 41930 + ... + 43691.

It is an arithmetic number, because the mean of its divisors is an integer number (18879651).

Almost surely, 2^75432101 is an apocalyptic number.

It is an amenable number.

75432101 is a deficient number, since it is larger than the sum of its proper divisors (86503).

75432101 is an equidigital number, since it uses as much as digits as its factorization.

75432101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86502.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 75432101 is about 8685.1655712485. The cubic root of 75432101 is about 422.5246669305.

Adding to 75432101 its reverse (10123457), we get a palindrome (85555558).

The spelling of 75432101 in words is "seventy-five million, four hundred thirty-two thousand, one hundred one".