2261423531 has 4 divisors (see below), whose sum is σ = 2262511272. Its totient is φ = 2260335792.

The previous prime is 2261423519. The next prime is 2261423573. The reversal of 2261423531 is 1353241622.

It is a happy number.

2261423531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2261423531 is a prime.

It is a super-2 number, since 2×2261423531² = 10228072773121015922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2261423494 and 2261423503.

It is not an unprimeable number, because it can be changed into a prime (2261423581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540746 + ... + 544911.

It is an arithmetic number, because the mean of its divisors is an integer number (565627818).

Almost surely, 2^2261423531 is an apocalyptic number.

2261423531 is a deficient number, since it is larger than the sum of its proper divisors (1087741).

2261423531 is a wasteful number, since it uses less digits than its factorization.

2261423531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087740.

The product of its digits is 8640, while the sum is 29.

The square root of 2261423531 is about 47554.4270389204. The cubic root of 2261423531 is about 1312.5845931388.

The spelling of 2261423531 in words is "two billion, two hundred sixty-one million, four hundred twenty-three thousand, five hundred thirty-one".