1423052251 has 4 divisors (see below), whose sum is σ = 1484924112. Its totient is φ = 1361180392.

The previous prime is 1423052249. The next prime is 1423052263. The reversal of 1423052251 is 1522503241.

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

It is a cyclic number.

It is not a de Polignac number, because 1423052251 - 2¹ = 1423052249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423052051) 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, 30935896 + ... + 30935941.

It is an arithmetic number, because the mean of its divisors is an integer number (371231028).

Almost surely, 2^1423052251 is an apocalyptic number.

1423052251 is a deficient number, since it is larger than the sum of its proper divisors (61871861).

1423052251 is an equidigital number, since it uses as much as digits as its factorization.

1423052251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61871860.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1423052251 is about 37723.3647889474. The cubic root of 1423052251 is about 1124.7956174557.

Adding to 1423052251 its reverse (1522503241), we get a palindrome (2945555492).

The spelling of 1423052251 in words is "one billion, four hundred twenty-three million, fifty-two thousand, two hundred fifty-one".