2158501432 has 16 divisors (see below), whose sum is σ = 4047683760. Its totient is φ = 1079119104.

The previous prime is 2158501427. The next prime is 2158501481. The reversal of 2158501432 is 2341058512.

It is a junction number, because it is equal to n+sod(n) for n = 2158501394 and 2158501403.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 115528 + ... + 132904.

It is an arithmetic number, because the mean of its divisors is an integer number (252980235).

Almost surely, 2^2158501432 is an apocalyptic number.

It is an amenable number.

2158501432 is a deficient number, since it is larger than the sum of its proper divisors (1889182328).

2158501432 is a wasteful number, since it uses less digits than its factorization.

2158501432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32910 (or 32906 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 2158501432 is about 46459.6753324859. The cubic root of 2158501432 is about 1292.3618034809.

Adding to 2158501432 its reverse (2341058512), we get a palindrome (4499559944).

The spelling of 2158501432 in words is "two billion, one hundred fifty-eight million, five hundred one thousand, four hundred thirty-two".