1545450241 has 4 divisors (see below), whose sum is σ = 1551916800. Its totient is φ = 1538983684.

The previous prime is 1545450227. The next prime is 1545450251. The reversal of 1545450241 is 1420545451.

It is a happy number.

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 1545450241 - 2⁹ = 1545449729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1545450251) 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, 3232921 + ... + 3233398.

It is an arithmetic number, because the mean of its divisors is an integer number (387979200).

Almost surely, 2^1545450241 is an apocalyptic number.

It is an amenable number.

1545450241 is a deficient number, since it is larger than the sum of its proper divisors (6466559).

1545450241 is an equidigital number, since it uses as much as digits as its factorization.

1545450241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6466558.

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 1545450241 is about 39312.2149083462. The cubic root of 1545450241 is about 1156.1610710237.

Adding to 1545450241 its reverse (1420545451), we get a palindrome (2965995692).

The spelling of 1545450241 in words is "one billion, five hundred forty-five million, four hundred fifty thousand, two hundred forty-one".