1015563442 has 16 divisors (see below), whose sum is σ = 1613645280. Its totient is φ = 477707328.

The previous prime is 1015563427. The next prime is 1015563463. The reversal of 1015563442 is 2443655101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99409 + ... + 109147.

It is an arithmetic number, because the mean of its divisors is an integer number (100852830).

Almost surely, 2^1015563442 is an apocalyptic number.

1015563442 is a deficient number, since it is larger than the sum of its proper divisors (598081838).

1015563442 is a wasteful number, since it uses less digits than its factorization.

1015563442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12825.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1015563442 is about 31867.9061439562. The cubic root of 1015563442 is about 1005.1611309017.

The spelling of 1015563442 in words is "one billion, fifteen million, five hundred sixty-three thousand, four hundred forty-two".