1375572045 has 16 divisors (see below), whose sum is σ = 2201519232. Its totient is φ = 733437120.

The previous prime is 1375572041. The next prime is 1375572059. The reversal of 1375572045 is 5402755731.

It is a happy number.

It is not a de Polignac number, because 1375572045 - 2² = 1375572041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1375571994 and 1375572012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375572041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55944 + ... + 76686.

It is an arithmetic number, because the mean of its divisors is an integer number (137594952).

Almost surely, 2^1375572045 is an apocalyptic number.

1375572045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1375572045 is a deficient number, since it is larger than the sum of its proper divisors (825947187).

1375572045 is a wasteful number, since it uses less digits than its factorization.

1375572045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25172.

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 1375572045 is about 37088.7050865894. The cubic root of 1375572045 is about 1112.1442319881.

The spelling of 1375572045 in words is "one billion, three hundred seventy-five million, five hundred seventy-two thousand, forty-five".