157683739 has 2 divisors, whose sum is σ = 157683740. Its totient is φ = 157683738.

The previous prime is 157683733. The next prime is 157683749. The reversal of 157683739 is 937386751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157683739 - 2¹⁹ = 157159451 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 157683692 and 157683701.

It is not a weakly prime, because it can be changed into another prime (157683733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78841869 + 78841870.

It is an arithmetic number, because the mean of its divisors is an integer number (78841870).

Almost surely, 2^157683739 is an apocalyptic number.

157683739 is a deficient number, since it is larger than the sum of its proper divisors (1).

157683739 is an equidigital number, since it uses as much as digits as its factorization.

157683739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 49.

The square root of 157683739 is about 12557.2186012668. The cubic root of 157683739 is about 540.2510709475.

The spelling of 157683739 in words is "one hundred fifty-seven million, six hundred eighty-three thousand, seven hundred thirty-nine".