742573057 has 2 divisors, whose sum is σ = 742573058. Its totient is φ = 742573056.

The previous prime is 742573049. The next prime is 742573079. The reversal of 742573057 is 750375247.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 382750096 + 359822961 = 19564^2 + 18969^2 .

It is an emirp because it is prime and its reverse (750375247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 742573057 - 2³ = 742573049 is a prime.

It is not a weakly prime, because it can be changed into another prime (742573037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371286528 + 371286529.

It is an arithmetic number, because the mean of its divisors is an integer number (371286529).

Almost surely, 2^742573057 is an apocalyptic number.

It is an amenable number.

742573057 is a deficient number, since it is larger than the sum of its proper divisors (1).

742573057 is an equidigital number, since it uses as much as digits as its factorization.

742573057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 205800, while the sum is 40.

The square root of 742573057 is about 27250.1937057335. The cubic root of 742573057 is about 905.5513086219.

The spelling of 742573057 in words is "seven hundred forty-two million, five hundred seventy-three thousand, fifty-seven".