1641301245 has 16 divisors (see below), whose sum is σ = 2917869120. Its totient is φ = 875360592.

The previous prime is 1641301219. The next prime is 1641301247. The reversal of 1641301245 is 5421031461.

It is a happy number.

1641301245 is a `hidden beast` number, since 1 + 6 + 413 + 0 + 1 + 245 = 666.

It is not a de Polignac number, because 1641301245 - 2¹³ = 1641293053 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641301247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6078759 + ... + 6079028.

It is an arithmetic number, because the mean of its divisors is an integer number (182366820).

Almost surely, 2^1641301245 is an apocalyptic number.

1641301245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1641301245 is a deficient number, since it is larger than the sum of its proper divisors (1276567875).

1641301245 is a wasteful number, since it uses less digits than its factorization.

1641301245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12157801 (or 12157795 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1641301245 is about 40512.9762545286. The cubic root of 1641301245 is about 1179.5855206654.

The spelling of 1641301245 in words is "one billion, six hundred forty-one million, three hundred one thousand, two hundred forty-five".