1451134644 has 12 divisors (see below), whose sum is σ = 3385980864. Its totient is φ = 483711544.

The previous prime is 1451134609. The next prime is 1451134649. The reversal of 1451134644 is 4464311541.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451134649) 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, 60463932 + ... + 60463955.

It is an arithmetic number, because the mean of its divisors is an integer number (282165072).

Almost surely, 2^1451134644 is an apocalyptic number.

It is an amenable number.

1451134644 is an abundant number, since it is smaller than the sum of its proper divisors (1934846220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1451134644 is a wasteful number, since it uses less digits than its factorization.

1451134644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120927894 (or 120927892 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 1451134644 is about 38093.7612214914. The cubic root of 1451134644 is about 1132.1463484534.

The spelling of 1451134644 in words is "one billion, four hundred fifty-one million, one hundred thirty-four thousand, six hundred forty-four".