2154564002 has 4 divisors (see below), whose sum is σ = 3231846006. Its totient is φ = 1077282000.

The previous prime is 2154563993. The next prime is 2154564011. The reversal of 2154564002 is 2004654512.

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

It is an interprime number because it is at equal distance from previous prime (2154563993) and next prime (2154564011).

It can be written as a sum of positive squares in only one way, i.e., 1633857241 + 520706761 = 40421^2 + 22819^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538640999 + ... + 538641002.

Almost surely, 2^2154564002 is an apocalyptic number.

2154564002 is a deficient number, since it is larger than the sum of its proper divisors (1077282004).

2154564002 is a wasteful number, since it uses less digits than its factorization.

2154564002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077282003.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 2154564002 is about 46417.2812861762. The cubic root of 2154564002 is about 1291.5755046607.

The spelling of 2154564002 in words is "two billion, one hundred fifty-four million, five hundred sixty-four thousand, two".