64129151 has 4 divisors (see below), whose sum is σ = 67901472. Its totient is φ = 60356832.

The previous prime is 64129141. The next prime is 64129159. The reversal of 64129151 is 15192146.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64129151 - 2¹⁸ = 63867007 is a prime.

It is a super-2 number, since 2×64129151² = 8225096015961602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64129159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886135 + ... + 1886168.

It is an arithmetic number, because the mean of its divisors is an integer number (16975368).

Almost surely, 2^64129151 is an apocalyptic number.

64129151 is a deficient number, since it is larger than the sum of its proper divisors (3772321).

64129151 is a wasteful number, since it uses less digits than its factorization.

64129151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3772320.

The product of its digits is 2160, while the sum is 29.

The square root of 64129151 is about 8008.0678693428. The cubic root of 64129151 is about 400.2688837966.

It can be divided in two parts, 641 and 29151, that added together give a palindrome (29792).

The spelling of 64129151 in words is "sixty-four million, one hundred twenty-nine thousand, one hundred fifty-one".