1042542657 has 48 divisors (see below), whose sum is σ = 1688039808. Its totient is φ = 639187200.

The previous prime is 1042542647. The next prime is 1042542659. The reversal of 1042542657 is 7562452401.

It is a happy number.

1042542657 is a `hidden beast` number, since 10 + 42 + 542 + 65 + 7 = 666.

It is not a de Polignac number, because 1042542657 - 2⁸ = 1042542401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1042542659) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1266348 + ... + 1267170.

It is an arithmetic number, because the mean of its divisors is an integer number (35167496).

Almost surely, 2^1042542657 is an apocalyptic number.

It is an amenable number.

1042542657 is a deficient number, since it is larger than the sum of its proper divisors (645497151).

1042542657 is an equidigital number, since it uses as much as digits as its factorization.

1042542657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 1042542657 is about 32288.4291503938. The cubic root of 1042542657 is about 1013.9844103202.

The spelling of 1042542657 in words is "one billion, forty-two million, five hundred forty-two thousand, six hundred fifty-seven".