1385950751 has 8 divisors (see below), whose sum is σ = 1396218384. Its totient is φ = 1375716160.

The previous prime is 1385950747. The next prime is 1385950781. The reversal of 1385950751 is 1570595831.

It is a happy number.

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 1385950751 - 2² = 1385950747 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 (1385950781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79331 + ... + 95211.

It is an arithmetic number, because the mean of its divisors is an integer number (174527298).

Almost surely, 2^1385950751 is an apocalyptic number.

1385950751 is a deficient number, since it is larger than the sum of its proper divisors (10267633).

1385950751 is a wasteful number, since it uses less digits than its factorization.

1385950751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16521.

The product of its (nonzero) digits is 189000, while the sum is 44.

The square root of 1385950751 is about 37228.3594991775. The cubic root of 1385950751 is about 1114.9342735091.

The spelling of 1385950751 in words is "one billion, three hundred eighty-five million, nine hundred fifty thousand, seven hundred fifty-one".