1545062401 has 4 divisors (see below), whose sum is σ = 1547567172. Its totient is φ = 1542557632.

The previous prime is 1545062399. The next prime is 1545062417. The reversal of 1545062401 is 1042605451.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 360050625 + 1185011776 = 18975^2 + 34424^2 .

It is a cyclic number.

It is not a de Polignac number, because 1545062401 - 2¹ = 1545062399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1545062401.

It is not an unprimeable number, because it can be changed into a prime (1545062461) 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, 1251460 + ... + 1252693.

It is an arithmetic number, because the mean of its divisors is an integer number (386891793).

Almost surely, 2^1545062401 is an apocalyptic number.

It is an amenable number.

1545062401 is a deficient number, since it is larger than the sum of its proper divisors (2504771).

1545062401 is an equidigital number, since it uses as much as digits as its factorization.

1545062401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504770.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1545062401 is about 39307.2817808609. The cubic root of 1545062401 is about 1156.0643477489.

Adding to 1545062401 its reverse (1042605451), we get a palindrome (2587667852).

The spelling of 1545062401 in words is "one billion, five hundred forty-five million, sixty-two thousand, four hundred one".