155002457 has 2 divisors, whose sum is σ = 155002458. Its totient is φ = 155002456.

The previous prime is 155002453. The next prime is 155002459. The reversal of 155002457 is 754200551.

155002457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112869376 + 42133081 = 10624^2 + 6491^2 .

It is a cyclic number.

It is not a de Polignac number, because 155002457 - 2² = 155002453 is a prime.

Together with 155002459, it forms a pair of twin primes.

It is a Chen prime.

155002457 is a modest number, since divided by 2457 gives 155 as remainder.

It is not a weakly prime, because it can be changed into another prime (155002453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77501228 + 77501229.

It is an arithmetic number, because the mean of its divisors is an integer number (77501229).

Almost surely, 2^155002457 is an apocalyptic number.

It is an amenable number.

155002457 is a deficient number, since it is larger than the sum of its proper divisors (1).

155002457 is an equidigital number, since it uses as much as digits as its factorization.

155002457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 155002457 is about 12449.9982730922. The cubic root of 155002457 is about 537.1713738087.

The spelling of 155002457 in words is "one hundred fifty-five million, two thousand, four hundred fifty-seven".