1445721054 has 32 divisors (see below), whose sum is σ = 3010302240. Its totient is φ = 462454272.

The previous prime is 1445721047. The next prime is 1445721083. The reversal of 1445721054 is 4501275441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28399 + ... + 60810.

It is an arithmetic number, because the mean of its divisors is an integer number (94071945).

Almost surely, 2^1445721054 is an apocalyptic number.

1445721054 is an abundant number, since it is smaller than the sum of its proper divisors (1564581186).

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

1445721054 is a wasteful number, since it uses less digits than its factorization.

1445721054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89324.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 1445721054 is about 38022.6387038038. The cubic root of 1445721054 is about 1130.7367357343.

Adding to 1445721054 its reverse (4501275441), we get a palindrome (5946996495).

It can be divided in two parts, 14457 and 21054, that added together give a triangular number (35511 = T₂₆₆).

The spelling of 1445721054 in words is "one billion, four hundred forty-five million, seven hundred twenty-one thousand, fifty-four".