1372049545 has 8 divisors (see below), whose sum is σ = 1654991496. Its totient is φ = 1091951616.

The previous prime is 1372049513. The next prime is 1372049557. The reversal of 1372049545 is 5459402731.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 110166016 + 1261883529 = 10496^2 + 35523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1372049545 - 2⁵ = 1372049513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1372049498 and 1372049507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709942 + ... + 711871.

It is an arithmetic number, because the mean of its divisors is an integer number (206873937).

Almost surely, 2^1372049545 is an apocalyptic number.

It is an amenable number.

1372049545 is a deficient number, since it is larger than the sum of its proper divisors (282941951).

1372049545 is a wasteful number, since it uses less digits than its factorization.

1372049545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422011.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 1372049545 is about 37041.1871435028. The cubic root of 1372049545 is about 1111.1941116904.

The spelling of 1372049545 in words is "one billion, three hundred seventy-two million, forty-nine thousand, five hundred forty-five".