1520243041 has 4 divisors (see below), whose sum is σ = 1520478000. Its totient is φ = 1520008084.

The previous prime is 1520242993. The next prime is 1520243077. The reversal of 1520243041 is 1403420251.

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 a de Polignac number, because none of the positive numbers 2^k-1520243041 is a prime.

It is a super-2 number, since 2×1520243041² = 4622277807417855362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1520243741) 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, 107491 + ... + 120808.

It is an arithmetic number, because the mean of its divisors is an integer number (380119500).

Almost surely, 2^1520243041 is an apocalyptic number.

It is an amenable number.

1520243041 is a deficient number, since it is larger than the sum of its proper divisors (234959).

1520243041 is an equidigital number, since it uses as much as digits as its factorization.

1520243041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234958.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1520243041 is about 38990.2941897083. The cubic root of 1520243041 is about 1149.8406940009.

Adding to 1520243041 its reverse (1403420251), we get a palindrome (2923663292).

The spelling of 1520243041 in words is "one billion, five hundred twenty million, two hundred forty-three thousand, forty-one".