15750145 has 16 divisors (see below), whose sum is σ = 19995840. Its totient is φ = 11876544.

The previous prime is 15750131. The next prime is 15750149. The reversal of 15750145 is 54105751.

It is a cyclic number.

It is not a de Polignac number, because 15750145 - 2⁵ = 15750113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15750149) 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, 29854 + ... + 30376.

It is an arithmetic number, because the mean of its divisors is an integer number (1249740).

Almost surely, 2^15750145 is an apocalyptic number.

It is an amenable number.

15750145 is a deficient number, since it is larger than the sum of its proper divisors (4245695).

15750145 is a wasteful number, since it uses less digits than its factorization.

15750145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864.

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 15750145 is about 3968.6452348377. The cubic root of 15750145 is about 250.6656659821.

Adding to 15750145 its reverse (54105751), we get a palindrome (69855896).

The spelling of 15750145 in words is "fifteen million, seven hundred fifty thousand, one hundred forty-five".