1046145900 has 72 divisors (see below), whose sum is σ = 3038017360. Its totient is φ = 277943040.

The previous prime is 1046145889. The next prime is 1046145911. The reversal of 1046145900 is 95416401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1046145889) and next prime (1046145911).

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

It is an unprimeable number.

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, 76806 + ... + 89394.

Almost surely, 2^1046145900 is an apocalyptic number.

1046145900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1046145900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1519008680).

1046145900 is an abundant number, since it is smaller than the sum of its proper divisors (1991871460).

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

1046145900 is a wasteful number, since it uses less digits than its factorization.

1046145900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12883 (or 12876 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1046145900 is about 32344.1787652740. The cubic root of 1046145900 is about 1015.1512470060.

The spelling of 1046145900 in words is "one billion, forty-six million, one hundred forty-five thousand, nine hundred".