1423154551 has 16 divisors (see below), whose sum is σ = 1752520000. Its totient is φ = 1125404928.

The previous prime is 1423154527. The next prime is 1423154573. The reversal of 1423154551 is 1554513241.

It is a cyclic number.

It is not a de Polignac number, because 1423154551 - 2⁵ = 1423154519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423154581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247315 + ... + 253003.

It is an arithmetic number, because the mean of its divisors is an integer number (109532500).

Almost surely, 2^1423154551 is an apocalyptic number.

1423154551 is a deficient number, since it is larger than the sum of its proper divisors (329365449).

1423154551 is a wasteful number, since it uses less digits than its factorization.

1423154551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8458.

The product of its digits is 12000, while the sum is 31.

The square root of 1423154551 is about 37724.7206881641. The cubic root of 1423154551 is about 1124.8225698122.

Adding to 1423154551 its reverse (1554513241), we get a palindrome (2977667792).

The spelling of 1423154551 in words is "one billion, four hundred twenty-three million, one hundred fifty-four thousand, five hundred fifty-one".