157340543 has 2 divisors, whose sum is σ = 157340544. Its totient is φ = 157340542.

The previous prime is 157340503. The next prime is 157340567. The reversal of 157340543 is 345043751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157340543 - 2¹² = 157336447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157340503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78670271 + 78670272.

It is an arithmetic number, because the mean of its divisors is an integer number (78670272).

Almost surely, 2^157340543 is an apocalyptic number.

157340543 is a deficient number, since it is larger than the sum of its proper divisors (1).

157340543 is an equidigital number, since it uses as much as digits as its factorization.

157340543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 157340543 is about 12543.5458702872. The cubic root of 157340543 is about 539.8588371298.

The spelling of 157340543 in words is "one hundred fifty-seven million, three hundred forty thousand, five hundred forty-three".