1015140397 has 16 divisors (see below), whose sum is σ = 1123103232. Its totient is φ = 912651520.

The previous prime is 1015140317. The next prime is 1015140421. The reversal of 1015140397 is 7930415101.

It is a cyclic number.

It is not a de Polignac number, because 1015140397 - 2¹¹ = 1015138349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015140307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413628 + ... + 416074.

It is an arithmetic number, because the mean of its divisors is an integer number (70193952).

Almost surely, 2^1015140397 is an apocalyptic number.

1015140397 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1015140397 is a deficient number, since it is larger than the sum of its proper divisors (107962835).

1015140397 is a wasteful number, since it uses less digits than its factorization.

1015140397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 1015140397 is about 31861.2679753961. The cubic root of 1015140397 is about 1005.0215409193.

Adding to 1015140397 its reverse (7930415101), we get a palindrome (8945555498).

The spelling of 1015140397 in words is "one billion, fifteen million, one hundred forty thousand, three hundred ninety-seven".