190012631 has 2 divisors, whose sum is σ = 190012632. Its totient is φ = 190012630.

The previous prime is 190012619. The next prime is 190012639. The reversal of 190012631 is 136210091.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (136210091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190012631 - 2²² = 185818327 is a prime.

It is a super-2 number, since 2×190012631² = 72209599879084322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 190012597 and 190012606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190012639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95006315 + 95006316.

It is an arithmetic number, because the mean of its divisors is an integer number (95006316).

Almost surely, 2^190012631 is an apocalyptic number.

190012631 is a deficient number, since it is larger than the sum of its proper divisors (1).

190012631 is an equidigital number, since it uses as much as digits as its factorization.

190012631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 190012631 is about 13784.5069190015. The cubic root of 190012631 is about 574.9024469664.

The spelling of 190012631 in words is "one hundred ninety million, twelve thousand, six hundred thirty-one".