157230205919 has 2 divisors, whose sum is σ = 157230205920. Its totient is φ = 157230205918.

The previous prime is 157230205883. The next prime is 157230205949. The reversal of 157230205919 is 919502032751.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157230205919 - 2⁸ = 157230205663 is a prime.

It is a super-2 number, since 2×157230205919² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157230205919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157230205949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78615102959 + 78615102960.

It is an arithmetic number, because the mean of its divisors is an integer number (78615102960).

Almost surely, 2^157230205919 is an apocalyptic number.

157230205919 is a deficient number, since it is larger than the sum of its proper divisors (1).

157230205919 is an equidigital number, since it uses as much as digits as its factorization.

157230205919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 170100, while the sum is 44.

The spelling of 157230205919 in words is "one hundred fifty-seven billion, two hundred thirty million, two hundred five thousand, nine hundred nineteen".