1045015155 has 64 divisors (see below), whose sum is σ = 1916006400. Its totient is φ = 540120960.

The previous prime is 1045015141. The next prime is 1045015163. The reversal of 1045015155 is 5515105401.

1045015155 is a `hidden beast` number, since 1 + 0 + 4 + 501 + 5 + 155 = 666.

It is not a de Polignac number, because 1045015155 - 2⁵ = 1045015123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 690850 + ... + 692360.

It is an arithmetic number, because the mean of its divisors is an integer number (29937600).

Almost surely, 2^1045015155 is an apocalyptic number.

1045015155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1045015155 is a deficient number, since it is larger than the sum of its proper divisors (870991245).

1045015155 is a wasteful number, since it uses less digits than its factorization.

1045015155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The square root of 1045015155 is about 32326.6941551406. The cubic root of 1045015155 is about 1014.7853671884.

The spelling of 1045015155 in words is "one billion, forty-five million, fifteen thousand, one hundred fifty-five".