72369129 has 36 divisors (see below), whose sum is σ = 115939824. Its totient is φ = 40014576.

The previous prime is 72369113. The next prime is 72369161. The reversal of 72369129 is 92196327.

It is not a de Polignac number, because 72369129 - 2⁴ = 72369113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72369929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 676294 + ... + 676400.

Almost surely, 2^72369129 is an apocalyptic number.

It is an amenable number.

72369129 is a deficient number, since it is larger than the sum of its proper divisors (43570695).

72369129 is a wasteful number, since it uses less digits than its factorization.

72369129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 160 counting only the distinct ones).

The product of its digits is 40824, while the sum is 39.

The square root of 72369129 is about 8507.0047020088. The cubic root of 72369129 is about 416.7264968662.

The spelling of 72369129 in words is "seventy-two million, three hundred sixty-nine thousand, one hundred twenty-nine".