1640129151 has 8 divisors (see below), whose sum is σ = 2187026944. Its totient is φ = 1093325400.

The previous prime is 1640129131. The next prime is 1640129167. The reversal of 1640129151 is 1519210461.

1640129151 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1640129151 - 2¹³ = 1640120959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1640129131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50226 + ... + 76176.

It is an arithmetic number, because the mean of its divisors is an integer number (273378368).

Almost surely, 2^1640129151 is an apocalyptic number.

1640129151 is a deficient number, since it is larger than the sum of its proper divisors (546897793).

1640129151 is a wasteful number, since it uses less digits than its factorization.

1640129151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47021.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 1640129151 is about 40498.5080095551. The cubic root of 1640129151 is about 1179.3046633560.

The spelling of 1640129151 in words is "one billion, six hundred forty million, one hundred twenty-nine thousand, one hundred fifty-one".