15380146 has 12 divisors (see below), whose sum is σ = 24118542. Its totient is φ = 7355216.

The previous prime is 15380143. The next prime is 15380147. The reversal of 15380146 is 64108351.

It can be written as a sum of positive squares in only one way, i.e., 14402025 + 978121 = 3795^2 + 989^2 .

It is not an unprimeable number, because it can be changed into a prime (15380143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6211 + ... + 8326.

Almost surely, 2^15380146 is an apocalyptic number.

15380146 is a deficient number, since it is larger than the sum of its proper divisors (8738396).

15380146 is a wasteful number, since it uses less digits than its factorization.

15380146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14585 (or 14562 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 15380146 is about 3921.7529243949. The cubic root of 15380146 is about 248.6872306122.

Adding to 15380146 its reverse (64108351), we get a palindrome (79488497).

The spelling of 15380146 in words is "fifteen million, three hundred eighty thousand, one hundred forty-six".