1449970551 has 24 divisors (see below), whose sum is σ = 2174097744. Its totient is φ = 965701440.

The previous prime is 1449970537. The next prime is 1449970559. The reversal of 1449970551 is 1550799441.

1449970551 is a `hidden beast` number, since 1 + 4 + 4 + 9 + 97 + 0 + 551 = 666.

It is not a de Polignac number, because 1449970551 - 2⁵ = 1449970519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1449970497 and 1449970506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1449970559) 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 23 ways as a sum of consecutive naturals, for example, 318745 + ... + 323261.

It is an arithmetic number, because the mean of its divisors is an integer number (90587406).

Almost surely, 2^1449970551 is an apocalyptic number.

1449970551 is a deficient number, since it is larger than the sum of its proper divisors (724127193).

1449970551 is an equidigital number, since it uses as much as digits as its factorization.

1449970551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5853 (or 5841 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 1449970551 is about 38078.4788430420. The cubic root of 1449970551 is about 1131.8435334086.

The spelling of 1449970551 in words is "one billion, four hundred forty-nine million, nine hundred seventy thousand, five hundred fifty-one".