7542049 has 2 divisors, whose sum is σ = 7542050. Its totient is φ = 7542048.

The previous prime is 7542047. The next prime is 7542053. The reversal of 7542049 is 9402457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6477025 + 1065024 = 2545^2 + 1032^2 .

It is an emirp because it is prime and its reverse (9402457) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7542049 - 2¹ = 7542047 is a prime.

Together with 7542047, it forms a pair of twin primes.

7542049 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7542049.

It is not a weakly prime, because it can be changed into another prime (7542047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3771024 + 3771025.

It is an arithmetic number, because the mean of its divisors is an integer number (3771025).

Almost surely, 2^7542049 is an apocalyptic number.

It is an amenable number.

7542049 is a deficient number, since it is larger than the sum of its proper divisors (1).

7542049 is an equidigital number, since it uses as much as digits as its factorization.

7542049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 7542049 is about 2746.2791190991. The cubic root of 7542049 is about 196.1085144627.

It can be divided in two parts, 75 and 42049, that added together give a palindrome (42124).

The spelling of 7542049 in words is "seven million, five hundred forty-two thousand, forty-nine".