120423537 has 16 divisors (see below), whose sum is σ = 192129280. Its totient is φ = 74106576.

The previous prime is 120423491. The next prime is 120423547. The reversal of 120423537 is 735324021.

120423537 is a `hidden beast` number, since 120 + 4 + 2 + 3 + 537 = 666.

It is not a de Polignac number, because 120423537 - 2⁷ = 120423409 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120423537.

It is not an unprimeable number, because it can be changed into a prime (120423547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171193 + ... + 171894.

It is an arithmetic number, because the mean of its divisors is an integer number (12008080).

Almost surely, 2^120423537 is an apocalyptic number.

It is an amenable number.

120423537 is a deficient number, since it is larger than the sum of its proper divisors (71705743).

120423537 is a wasteful number, since it uses less digits than its factorization.

120423537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343109 (or 343103 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 120423537 is about 10973.7658531609. The cubic root of 120423537 is about 493.8220290794.

Adding to 120423537 its reverse (735324021), we get a palindrome (855747558).

The spelling of 120423537 in words is "one hundred twenty million, four hundred twenty-three thousand, five hundred thirty-seven".