290077157 has 2 divisors, whose sum is σ = 290077158. Its totient is φ = 290077156.

The previous prime is 290077147. The next prime is 290077159. The reversal of 290077157 is 751770092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 285407236 + 4669921 = 16894^2 + 2161^2 .

It is a cyclic number.

It is not a de Polignac number, because 290077157 - 2⁴ = 290077141 is a prime.

Together with 290077159, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 290077157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (290077159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145038578 + 145038579.

It is an arithmetic number, because the mean of its divisors is an integer number (145038579).

Almost surely, 2^290077157 is an apocalyptic number.

It is an amenable number.

290077157 is a deficient number, since it is larger than the sum of its proper divisors (1).

290077157 is an equidigital number, since it uses as much as digits as its factorization.

290077157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30870, while the sum is 38.

The square root of 290077157 is about 17031.6516227875. The cubic root of 290077157 is about 661.9692919373.

The spelling of 290077157 in words is "two hundred ninety million, seventy-seven thousand, one hundred fifty-seven".