157055771 has 2 divisors, whose sum is σ = 157055772. Its totient is φ = 157055770.

The previous prime is 157055761. The next prime is 157055803. The reversal of 157055771 is 177550751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157055771 - 2¹⁰ = 157054747 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157055761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78527885 + 78527886.

It is an arithmetic number, because the mean of its divisors is an integer number (78527886).

Almost surely, 2^157055771 is an apocalyptic number.

157055771 is a deficient number, since it is larger than the sum of its proper divisors (1).

157055771 is an equidigital number, since it uses as much as digits as its factorization.

157055771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42875, while the sum is 38.

The square root of 157055771 is about 12532.1893937173. The cubic root of 157055771 is about 539.5329420554.

The spelling of 157055771 in words is "one hundred fifty-seven million, fifty-five thousand, seven hundred seventy-one".