1045155450 has 48 divisors (see below), whose sum is σ = 2647152000. Its totient is φ = 272776320.

The previous prime is 1045155431. The next prime is 1045155451. The reversal of 1045155450 is 545515401.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1045155451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67075 + ... + 81174.

It is an arithmetic number, because the mean of its divisors is an integer number (55149000).

Almost surely, 2^1045155450 is an apocalyptic number.

1045155450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1045155450 is an abundant number, since it is smaller than the sum of its proper divisors (1601996550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1045155450 is a wasteful number, since it uses less digits than its factorization.

1045155450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148311 (or 148306 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 1045155450 is about 32328.8640381935. The cubic root of 1045155450 is about 1014.8307773568.

The spelling of 1045155450 in words is "one billion, forty-five million, one hundred fifty-five thousand, four hundred fifty".