72095431 has 4 divisors (see below), whose sum is σ = 72201672. Its totient is φ = 71989192.

The previous prime is 72095411. The next prime is 72095437. The reversal of 72095431 is 13459027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13459027 = 67 ⋅200881.

It is a cyclic number.

It is not a de Polignac number, because 72095431 - 2¹⁵ = 72062663 is a prime.

It is a super-2 number, since 2×72095431² = 10395502342151522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72095393 and 72095402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72095437) 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, 52096 + ... + 53461.

It is an arithmetic number, because the mean of its divisors is an integer number (18050418).

Almost surely, 2^72095431 is an apocalyptic number.

72095431 is a deficient number, since it is larger than the sum of its proper divisors (106241).

72095431 is a wasteful number, since it uses less digits than its factorization.

72095431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106240.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 72095431 is about 8490.9028377435. The cubic root of 72095431 is about 416.2004839090.

The spelling of 72095431 in words is "seventy-two million, ninety-five thousand, four hundred thirty-one".