1042520001 has 4 divisors (see below), whose sum is σ = 1390026672. Its totient is φ = 695013332.

The previous prime is 1042519979. The next prime is 1042520009. The reversal of 1042520001 is 1000252401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1042520001 - 2⁶ = 1042519937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1042520009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173753331 + ... + 173753336.

It is an arithmetic number, because the mean of its divisors is an integer number (347506668).

Almost surely, 2^1042520001 is an apocalyptic number.

It is an amenable number.

1042520001 is a deficient number, since it is larger than the sum of its proper divisors (347506671).

1042520001 is an equidigital number, since it uses as much as digits as its factorization.

1042520001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347506670.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1042520001 is about 32288.0783107326. The cubic root of 1042520001 is about 1013.9770651380.

Adding to 1042520001 its reverse (1000252401), we get a palindrome (2042772402).

The spelling of 1042520001 in words is "one billion, forty-two million, five hundred twenty thousand, one".