1015225207 has 4 divisors (see below), whose sum is σ = 1027456920. Its totient is φ = 1002993496.

The previous prime is 1015225201. The next prime is 1015225217. The reversal of 1015225207 is 7025225101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7025225101 = 53 ⋅132551417.

It is a cyclic number.

It is not a de Polignac number, because 1015225207 - 2¹⁹ = 1014700919 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 (1015225201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6115732 + ... + 6115897.

It is an arithmetic number, because the mean of its divisors is an integer number (256864230).

Almost surely, 2^1015225207 is an apocalyptic number.

1015225207 is a deficient number, since it is larger than the sum of its proper divisors (12231713).

1015225207 is an equidigital number, since it uses as much as digits as its factorization.

1015225207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12231712.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 1015225207 is about 31862.5988739149. The cubic root of 1015225207 is about 1005.0495283463.

The spelling of 1015225207 in words is "one billion, fifteen million, two hundred twenty-five thousand, two hundred seven".