69190631 has 2 divisors, whose sum is σ = 69190632. Its totient is φ = 69190630.

The previous prime is 69190621. The next prime is 69190633. The reversal of 69190631 is 13609196.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69190631 - 2⁶ = 69190567 is a prime.

It is a super-2 number, since 2×69190631² = 9574686836356322, which contains 22 as substring.

Together with 69190633, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 69190591 and 69190600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69190633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34595315 + 34595316.

It is an arithmetic number, because the mean of its divisors is an integer number (34595316).

Almost surely, 2^69190631 is an apocalyptic number.

69190631 is a deficient number, since it is larger than the sum of its proper divisors (1).

69190631 is an equidigital number, since it uses as much as digits as its factorization.

69190631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 69190631 is about 8318.0905861862. The cubic root of 69190631 is about 410.5339681691.

The spelling of 69190631 in words is "sixty-nine million, one hundred ninety thousand, six hundred thirty-one".