387125945 has 8 divisors (see below), whose sum is σ = 464844744. Its totient is φ = 309505024.

The previous prime is 387125927. The next prime is 387125951. The reversal of 387125945 is 549521783.

It can be written as a sum of positive squares in 4 ways, for example, as 3083536 + 384042409 = 1756^2 + 19597^2 .

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 387125945 - 2¹² = 387121849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 387125896 and 387125905.

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, 15464 + ... + 31833.

It is an arithmetic number, because the mean of its divisors is an integer number (58105593).

Almost surely, 2^387125945 is an apocalyptic number.

It is an amenable number.

387125945 is a deficient number, since it is larger than the sum of its proper divisors (77718799).

387125945 is a wasteful number, since it uses less digits than its factorization.

387125945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48939.

The product of its digits is 302400, while the sum is 44.

The square root of 387125945 is about 19675.5163845832. The cubic root of 387125945 is about 728.8152076613.

The spelling of 387125945 in words is "three hundred eighty-seven million, one hundred twenty-five thousand, nine hundred forty-five".