1047377545 has 4 divisors (see below), whose sum is σ = 1256853060. Its totient is φ = 837902032.

The previous prime is 1047377521. The next prime is 1047377557. The reversal of 1047377545 is 5457737401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5457737401 = 8231 ⋅663071.

It can be written as a sum of positive squares in 2 ways, for example, as 660901264 + 386476281 = 25708^2 + 19659^2 .

It is a cyclic number.

It is not a de Polignac number, because 1047377545 - 2¹³ = 1047369353 is a prime.

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104737750 + ... + 104737759.

It is an arithmetic number, because the mean of its divisors is an integer number (314213265).

Almost surely, 2^1047377545 is an apocalyptic number.

It is an amenable number.

1047377545 is a deficient number, since it is larger than the sum of its proper divisors (209475515).

1047377545 is an equidigital number, since it uses as much as digits as its factorization.

1047377545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209475514.

The product of its (nonzero) digits is 411600, while the sum is 43.

The square root of 1047377545 is about 32363.2128349458. The cubic root of 1047377545 is about 1015.5494755926.

The spelling of 1047377545 in words is "one billion, forty-seven million, three hundred seventy-seven thousand, five hundred forty-five".