785411131 has 2 divisors, whose sum is σ = 785411132. Its totient is φ = 785411130.

The previous prime is 785411119. The next prime is 785411141. The reversal of 785411131 is 131114587.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (131114587) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-785411131 is a prime.

It is a super-2 number, since 2×785411131² = 1233741289397398322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 785411093 and 785411102.

It is not a weakly prime, because it can be changed into another prime (785411111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392705565 + 392705566.

It is an arithmetic number, because the mean of its divisors is an integer number (392705566).

Almost surely, 2^785411131 is an apocalyptic number.

785411131 is a deficient number, since it is larger than the sum of its proper divisors (1).

785411131 is an equidigital number, since it uses as much as digits as its factorization.

785411131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 31.

The square root of 785411131 is about 28025.1874391591. The cubic root of 785411131 is about 922.6401521283.

The spelling of 785411131 in words is "seven hundred eighty-five million, four hundred eleven thousand, one hundred thirty-one".