1452405477 has 4 divisors (see below), whose sum is σ = 1936540640. Its totient is φ = 968270316.

The previous prime is 1452405413. The next prime is 1452405491. The reversal of 1452405477 is 7745042541.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7745042541 = 3 ⋅2581680847.

It is not a de Polignac number, because 1452405477 - 2⁶ = 1452405413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1452405407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242067577 + ... + 242067582.

It is an arithmetic number, because the mean of its divisors is an integer number (484135160).

Almost surely, 2^1452405477 is an apocalyptic number.

It is an amenable number.

1452405477 is a deficient number, since it is larger than the sum of its proper divisors (484135163).

1452405477 is an equidigital number, since it uses as much as digits as its factorization.

1452405477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484135162.

The product of its (nonzero) digits is 156800, while the sum is 39.

The square root of 1452405477 is about 38110.4379009216. The cubic root of 1452405477 is about 1132.4767448894.

The spelling of 1452405477 in words is "one billion, four hundred fifty-two million, four hundred five thousand, four hundred seventy-seven".