75210137031 has 4 divisors (see below), whose sum is σ = 100280182712. Its totient is φ = 50140091352.

The previous prime is 75210137003. The next prime is 75210137069. The reversal of 75210137031 is 13073101257.

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

It is not a de Polignac number, because 75210137031 - 2¹⁴ = 75210120647 is a prime.

It is a super-2 number, since 2×75210137031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75210137031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75210130031) 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, 12535022836 + ... + 12535022841.

It is an arithmetic number, because the mean of its divisors is an integer number (25070045678).

Almost surely, 2^75210137031 is an apocalyptic number.

75210137031 is a deficient number, since it is larger than the sum of its proper divisors (25070045681).

75210137031 is a wasteful number, since it uses less digits than its factorization.

75210137031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25070045680.

The product of its (nonzero) digits is 4410, while the sum is 30.

Adding to 75210137031 its reverse (13073101257), we get a palindrome (88283238288).

The spelling of 75210137031 in words is "seventy-five billion, two hundred ten million, one hundred thirty-seven thousand, thirty-one".