2182156901 has 8 divisors (see below), whose sum is σ = 2304469440. Its totient is φ = 2062130752.

The previous prime is 2182156871. The next prime is 2182156903. The reversal of 2182156901 is 1096512812.

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

It is a cyclic number.

It is not a de Polignac number, because 2182156901 - 2²⁶ = 2115048037 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 (2182156903) 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, 569636 + ... + 573453.

It is an arithmetic number, because the mean of its divisors is an integer number (288058680).

Almost surely, 2^2182156901 is an apocalyptic number.

It is an amenable number.

2182156901 is a deficient number, since it is larger than the sum of its proper divisors (122312539).

2182156901 is a wasteful number, since it uses less digits than its factorization.

2182156901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143195.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 2182156901 is about 46713.5622812048. The cubic root of 2182156901 is about 1297.0657490992.

The spelling of 2182156901 in words is "two billion, one hundred eighty-two million, one hundred fifty-six thousand, nine hundred one".