75120901 has 2 divisors, whose sum is σ = 75120902. Its totient is φ = 75120900.

The previous prime is 75120847. The next prime is 75120961. The reversal of 75120901 is 10902157.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63218401 + 11902500 = 7951^2 + 3450^2 .

It is a cyclic number.

It is not a de Polignac number, because 75120901 - 2¹¹ = 75118853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75120961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37560450 + 37560451.

It is an arithmetic number, because the mean of its divisors is an integer number (37560451).

Almost surely, 2^75120901 is an apocalyptic number.

It is an amenable number.

75120901 is a deficient number, since it is larger than the sum of its proper divisors (1).

75120901 is an equidigital number, since it uses as much as digits as its factorization.

75120901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 75120901 is about 8667.2314495460. The cubic root of 75120901 is about 421.9428151139.

The spelling of 75120901 in words is "seventy-five million, one hundred twenty thousand, nine hundred one".