190372639 has 2 divisors, whose sum is σ = 190372640. Its totient is φ = 190372638.

The previous prime is 190372591. The next prime is 190372649. The reversal of 190372639 is 936273091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 190372639 - 2¹¹ = 190370591 is a prime.

It is a super-3 number, since 3×190372639³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190372649) 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, 95186319 + 95186320.

It is an arithmetic number, because the mean of its divisors is an integer number (95186320).

Almost surely, 2^190372639 is an apocalyptic number.

190372639 is a deficient number, since it is larger than the sum of its proper divisors (1).

190372639 is an equidigital number, since it uses as much as digits as its factorization.

190372639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 190372639 is about 13797.5591682007. The cubic root of 190372639 is about 575.2652981177.

The spelling of 190372639 in words is "one hundred ninety million, three hundred seventy-two thousand, six hundred thirty-nine".