2220634154 has 4 divisors (see below), whose sum is σ = 3330951234. Its totient is φ = 1110317076.

The previous prime is 2220634133. The next prime is 2220634159. The reversal of 2220634154 is 4514360222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4514360222 = 2 ⋅2257180111.

It can be written as a sum of positive squares in only one way, i.e., 1328238025 + 892396129 = 36445^2 + 29873^2 .

It is a super-2 number, since 2×2220634154² = 9862432091822591432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2220634159) 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 as a sum of consecutive naturals, namely, 555158537 + ... + 555158540.

Almost surely, 2^2220634154 is an apocalyptic number.

2220634154 is a deficient number, since it is larger than the sum of its proper divisors (1110317080).

2220634154 is a wasteful number, since it uses less digits than its factorization.

2220634154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110317079.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 2220634154 is about 47123.6050615825. The cubic root of 2220634154 is about 1304.6449524669.

Adding to 2220634154 its reverse (4514360222), we get a palindrome (6734994376).

The spelling of 2220634154 in words is "two billion, two hundred twenty million, six hundred thirty-four thousand, one hundred fifty-four".