1045145620 has 12 divisors (see below), whose sum is σ = 2194805844. Its totient is φ = 418058240.

The previous prime is 1045145617. The next prime is 1045145657. The reversal of 1045145620 is 265415401.

It can be written as a sum of positive squares in 2 ways, for example, as 793098244 + 252047376 = 28162^2 + 15876^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26128621 + ... + 26128660.

It is an arithmetic number, because the mean of its divisors is an integer number (182900487).

Almost surely, 2^1045145620 is an apocalyptic number.

1045145620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045145620 is an abundant number, since it is smaller than the sum of its proper divisors (1149660224).

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

1045145620 is a wasteful number, since it uses less digits than its factorization.

1045145620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52257290 (or 52257288 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1045145620 is about 32328.7120065121. The cubic root of 1045145620 is about 1014.8275957511.

The spelling of 1045145620 in words is "one billion, forty-five million, one hundred forty-five thousand, six hundred twenty".