2261026154 has 4 divisors (see below), whose sum is σ = 3391539234. Its totient is φ = 1130513076.

The previous prime is 2261026147. The next prime is 2261026177. The reversal of 2261026154 is 4516201622.

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

It can be written as a sum of positive squares in only one way, i.e., 1368630025 + 892396129 = 36995^2 + 29873^2 .

It is a super-2 number, since 2×2261026154² = 10224478538144063432, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 565256537 + ... + 565256540.

Almost surely, 2^2261026154 is an apocalyptic number.

2261026154 is a deficient number, since it is larger than the sum of its proper divisors (1130513080).

2261026154 is a wasteful number, since it uses less digits than its factorization.

2261026154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130513079.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2261026154 is about 47550.2487270046. The cubic root of 2261026154 is about 1312.5077062465.

Adding to 2261026154 its reverse (4516201622), we get a palindrome (6777227776).

The spelling of 2261026154 in words is "two billion, two hundred sixty-one million, twenty-six thousand, one hundred fifty-four".