75213105 has 32 divisors (see below), whose sum is σ = 136995840. Its totient is φ = 34879680.

The previous prime is 75213101. The next prime is 75213107. The reversal of 75213105 is 50131257.

It is not a de Polignac number, because 75213105 - 2² = 75213101 is a prime.

It is a super-2 number, since 2×75213105² = 11314022327482050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75213101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6115 + ... + 13704.

It is an arithmetic number, because the mean of its divisors is an integer number (4281120).

Almost surely, 2^75213105 is an apocalyptic number.

It is an amenable number.

75213105 is a deficient number, since it is larger than the sum of its proper divisors (61782735).

75213105 is a wasteful number, since it uses less digits than its factorization.

75213105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19861.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 75213105 is about 8672.5489332722. The cubic root of 75213105 is about 422.1153765373.

The spelling of 75213105 in words is "seventy-five million, two hundred thirteen thousand, one hundred five".